Where did this conversation most likely take place?

M: Could you give me something for the pain? I didn’t get to sleep until three o’clock this morning.
W: Aspirin is the strongest medication I can give you without a prescription.
M: That isn’t strong enough, and I don’t have an appointment with my dentist until next week.
W: Who is your dentist?
M: Dr. Williams.
W: Doesn’t he have his office on the corner?
M: Yes, he does.
W: Are you a regular patient?
M: Yes.
W: Oh. Then I can call him if you like. Dr. Williams will give me a pain prescription over the phone.
M: I’d appreciate that very much. Do you think that he’ll still be in his office?
W: Sure. It’s only four-thirty. He should be there until five.
M: Good.
W: Too bad you can’t get an appointment sooner.
M: I know. Dr. Williams is always hooked up though. I was lucky to get in as soon as I did.
W: In the mean time, be careful not to eat or drink anything too hot or too cold.
M: I really don’t feel like eating or drinking anything at all.
W: Well, I’ll give Dr. Williams a call and we’ll see what we can do for you.