I'd like to make an appointment with the doctor, please.
OK, how about the day after tomorrow on Wednesday at 4:00 pm?
Do you happen to have an opening in the morning?
Emm, how about tomorrow at 8:00 am or Thursday at 8:15 am?
Ah, do you have anything earlier?
No, I'm sorry.
Well, in that case tomorrow would be fine.
What's the purpose of your visit?