A: I'm calling because I need to reschedule my appointment.
B: What was the original appointment date and time?
A: I am supposed to come in on Thursday at 10 in the morning.
B: Are you Tina Williams?
A: That's me.
B: When would you like to reschedule the appointment for?
A: Can Dr. Harris see me next Tuesday at 10?
B: He doesn't have an opening that day until noon.
A: I'll have to come on my lunch break then.
B: So shall I give you that appointment time?
A: Yeah, put me down for that time.
B: Just let us know 24 hours in advance if you need to cancel or reschedule.