I made an appointment with a new dentist for the next day, and 15 minutes after I called and setup the appointment, they called me back and left a voicemail reminder that I had an appointment the next day. It was some kind of reminder service, and to keep my appointment I had to call back and say I'd be there. I'm sure they had the best of intentions with the service, but it fell flat in terms of customer experience. Just out of curiosity, I asked the person when I called to confirm my appointment what would happen if I had to cancel. She informed me of the 48-hour cancelation policy, so I told her I'd be there.