Appointment Pending Issues:

1. Any doctor Time slot are not available their after its displaying to employee while adding & edit the appointment.
2. Diff. user can add appointment or edit appointment for same time slot of doctor.
3. We are assign 2 or multiple location to any doctor and create time slot only for one location.
Now another location's employee have add appointment at that time also first location's 
time slot are visible also & appointment booked also, but in edit mode: doctor and slot,symtoms 
not display.
4. 