A patient phones a doctor’s practice to make an appointment to see the doctor. They give their details and the preferred appointment date/time to the receptionist, who confirms the appointment. Two days before the appointment, a reminder WhatsApp message is sent to the patient. From time to time, the doctor enters his/her available times into the system. Every day, the doctor asks the receptionist for the day’s list of appointments. The receptionist gives the doctor the list of appointments for that day.

The label which should replace circle 1 is _______.