You sent the appointment reminder text. They still didn't show up.
The usual advice is to send more reminders. That rarely helps, because the problem normally isn't that people forgot. It's that they couldn't make it, and your message gave them no easy way to tell you.
Here's what to say, when to send it, and what to do when someone replies.
Why most reminders get ignored
Ask an owner what worries them about reminder texts and they rarely say timing. They say they don't want to sound like a nag.
That worry is correct, and the usual fix makes it worse. People soften the message until it apologizes for existing. "Just a quick reminder that you have an upcoming appointment scheduled with us" is three apologies in one sentence, and it reads like a form letter.
A reminder works when it sounds like a person who is expecting you.
What a good reminder says
Good appointment reminder wording does four things, in this order.
Who you are. People delete texts from numbers they don't know. "Hi Sarah, it's Mel at Bright Dental" does more work than any clever wording.
Just the details. Day, time, place. Don't wrap them in a long sentence like "we are writing to confirm your scheduled appointment which will take place on".
One thing to do. A reminder ending in a full stop gets nothing back. One ending in "Reply YES to confirm, or C to change it" gets an answer either way, and both answers are useful.
Nothing else. No offers, no survey, no newsletter. A reminder with a promotion bolted on stops being a reminder.
Pro Tip
Drop the phrase "just a reminder". People reach for it to sound polite, but it apologizes for the message, which makes it feel like an imposition. "Your appointment is Thursday at 2pm" is friendlier because it's direct.
When to send appointment reminders

Two sends cover most businesses: the day before, and the confirmation when they book.
Add the week-before message only if people book a month or more ahead. Sent too early it's noise, and they'll have forgotten again by the time the date arrives.
Add the two-hour message only if you take same-day bookings or run a tight schedule where a gap can't be filled.
Four messages for a haircut is too many. Use what the booking needs.
If you're already sending reminders and hearing nothing back, check they're arriving before you rewrite them — this guide covers why texts don't arrive.
Ten templates
Swap the bracketed parts for your own details.
Right after they book
Hi [Name], you're booked for [service] on [day] at [time] at [Business]. Need to change it? [link]Pro Tip
Send the confirmation by email and the reminder by text. The email carries the calendar invite and the full details; the text arrives when it matters. Our guide to choosing between the two covers where each one works.
The next three suit any practice that books months ahead. Dental appointment reminders by text are the clearest case — a check-up booked six months out is forgotten within a week.
Dental or medical — one week before
Hi [Name], it's [Practice]. Your [visit type] with [clinician] is [day] at [time]. Reply C if you need to move it.Dental or medical — the day before
Hi [Name], see you tomorrow at [time] at [Practice]. Reply YES to confirm.Dental or medical — two hours before
Hi [Name], your appointment at [Practice] is at [time] today. We're at [address].Salon or barber — the day before
Hi [Name], [stylist] has you down for [service] tomorrow at [time]. Reply YES to confirm or C to change it.Salon or barber — two hours before
Hi [Name], see you at [time] today. We're at [address], and there's parking out back.Home services — the day before
Hi [Name], [Company] here. [Tech] is booked for [day] between [time window]. Someone will need to be home. Reply YES to confirm.Home services — on the way
Hi [Name], [Tech] is on the way and should be with you by [time].Classes or training — the day before
Hi [Name], your [class] is at [time] tomorrow with [instructor]. Reply C if you can't make it and we'll give your spot to someone waiting.When they say they can't make it
No problem at all. Here are the next openings: [link]. Take whichever suits you.When someone replies "I can't make it"
Every guide stops at the wording. This is the part that decides whether reminders actually make you money.
A reply is good news. That appointment was going to be empty either way. Now you know in advance, and you have time to fill it. Handling replies well does more to reduce no-shows than any amount of rewording.
Three things have to happen, and most setups only manage the first.
Stop the rest of the reminders for that booking. Nothing damages trust faster than a reminder for an appointment the customer already cancelled.
Offer times instead of asking them to call. "Give us a call to rebook" loses most people. A link with your real availability keeps them.
Put the slot back on offer. A freed-up Thursday at 2pm is worth something to whoever is waiting.
One message covers all of this: "No problem at all. Here are the next openings: [link]. Take whichever suits you." That single reply turns a cancellation into a new booking.
Setting a no-show policy without sounding harsh
A policy is something people see before they book, not a punishment handed out afterwards.
Decide three things.
How much notice you need. Twenty-four hours is the usual answer for appointment businesses.
What you do when someone cancels late. You can charge a fee, take a deposit when they book, or do nothing. Many businesses find that simply telling people the rule is enough.
Whether you'll actually apply the rule. A policy you ignore is worse than no policy, because the people who followed it feel foolish.
Then write it as one plain sentence on your booking page: "We ask for 24 hours' notice to cancel. Any later and we charge [amount], because the slot usually can't be filled." The reason is what makes it land. People accept a rule they understand.
One wording note. Don't use the phrase "no-show" with the customer. It sounds like an accusation, and most missed appointments aren't anyone's fault. "We missed you on Tuesday" says the same thing without the edge.
Cancellation fees have legal strings attached, and they vary by state and by what the customer agreed to at booking. Check with your own advisor before you start charging one. This post is a guide to wording and timing, not legal advice.
Stop reminders that have gone stale
The quickest way to teach customers to ignore your texts is to remind them about something they already moved.
It happens constantly. The reminder was scheduled when the booking was made. The customer rescheduled. The old reminder went out anyway, with the old time on it.
Now they don't trust the next one.
This is a wiring problem, not a writing problem. The reminders have to be attached to the booking, so that when the booking changes they change with it. With sms appointment reminders set up this way, a cancellation or a reschedule updates the messages that haven't gone out yet. The confirmation also carries a link the customer can use to move the booking themselves.
Start with the one you send most
You don't need ten messages tomorrow.
Take the reminder you already send most often and read it out loud. If it sounds like a form letter, it is one. Cut it to the four things above — who you are, the facts, one thing to do, nothing else.
Then add the reply path, because that's where the money is. Most of the people who miss appointments would have told you, if telling you had been easy.



