1. This is a follow-up appointment
2. This is a double-booked appointment
3. This is a confirmed appointment
4. This is a out-of-hours appointment
5. This is a delayed appointment
6. This is a initial appointment
7. This is a postponed appointment
8.This is a missed appointment
9. This is a vacant appointment
10. This is a routine appointment
11. This is a previous appointment
12. This is a successive appointment