this conversation is between a concierge at a hotel anda customer

A: I have a reservation. My name is John Sandals.
B: May I see your ID, please, Mr. Sandals?
A: Certainly. Here it is.
B: Thank you. Do you have a credit card, Mr. Sandals?
A: Yes, I do. Do you accept American Express?
B: Sorry, sir, just VISA or MasterCard.
A: Here’s my VISA card.
B: Okay. You’re in room 507. It’s a single queen-size bed, spacious, and nonsmoking. Is that suitable?
A: Yes, it sounds like everything I expected.
B: Here’s your key, sir. If you need anything, just dial 0 on your room phone.