If a customer would like a specific appointment time that is not available you can put them on the wait-list. This is done by creating an appointment anywhere around the date/time that they would like and then marking it in the wait-list as reschedule.
Customers sometimes book an appointment, but then due to changed circumstances need to reschedule their appointment.
Customers will sometimes want to rearrange their appointment, but will still come at their original time if nothing else comes available.
There are two types of wait-listed appointments you can use for different situations.
The appointment waitlist is used when a customer cannot get an appointment at the time they prefer.