Your scheduled appointments can be managed by yourself or your office administrator/ support staff with 'Quick Messages' in your 'Active and Pending' room or by using the 'Alert Patient' feature within the active consultation itself .
Click the following article for further info:
Private Message a Patient Before Their Consultation Begins
Customize & Use 'Quick Messages' to Patients
'Clinic Settings' - Patient Appointment Notifications, Reminders & Messaging
Private messaging helps with patient expectations, waiting room flow, and rescheduling appointments, if needed because of the delay.