Status if this appointment is in the process of being assigned to someone else
public enum AssignmentStatus
11: 11: Appointment in the process of being assigned to someone else
13: 13: Appointment where the person requested to take ownership has declined.
1: 1: All appointments not in the process of being assigned to someone else
12: 12: Appointment where the party requested to take ownership of the appointment or task has observed the request, but not yet accepted or declined the request.
0: Unknown - used when initializing