Hello, I scheduled an appointment with Dr. Smith, and I can't make it on that day.
What day was your appointment on?
My appointment was on Monday.
What time had you chosen?
It was for 10
I am looking at your appointment right now. What day would you prefer?
I would prefer next Thursday.
What time would be best for you?
I want to come in at 2
I am writing you down for that time. We look forward to seeing you.