get https://acuityscheduling.com/api/v1/appointments/
Get a single appointment by ID.
Canceled Appointments
Canceled appointments include a field,
noShowwhich is true if the appointment was marked as a no-show by an admin and false if the appointment is simply canceled.
The scheduledBy field contains the username of the user or logged in client who scheduled the appointment. If an appointment was scheduled by a client not logged in, it will be null.