Start with the service
Different services have different repeat cycles. Use the customer’s recorded service and prior intervals, then let staff review whether the timing makes sense.
Make rebooking easy
Mention the relevant service and a clear way to ask about available times. Do not say a slot is booked until the booking system or staff confirms it.
Remember preferences carefully
Keep only information needed for the service and explain how it is used. Avoid putting sensitive notes into campaign messages or broadly accessible exports.
Close the loop
Separate an enquiry, a booking and an attended appointment. Measure completed services and repeat rebooking, along with opt-outs and complaints.