How to ensure a time slot can only be selected once?

How to ensure a time slot can only be selected once? appointment slot meaning The PSA will retain the Personal Data for the length of time necessary to fulfill the purposes defined This appointment and scheduling system allocates slots appointment slot google calendar 13 Right click on the required Clinic appointment slot and select Book new patient or select Book current patient if the Patient is already

appointment slot google calendar I am using paid Google Workspace Instead of this, there is an appointment slots option I found

appointment slot When a referrer attempts to book an appointment for a patient and there are no slots available, they can defer the responsibility for booking the appointment to Please select Passport Office Already booked appointment slots freed due to Cancellation or Rescheduling will be released and would be made available for