What kind of room does the customer want to reserve?

Customer: Can I reserve a room for the day after tomorrow, please?
Clerk: Yes, sir. Single, double or twin?
Customer: Oh, er,.., twin room, please.
Clerk: With bathroom or without?
Customer: Is there much difference in price?
Clerk: Well, it’s US $ 100 per night without bathroom and US $ 120 with bathroom en suite.
Customer: With bathroom then, please.
Clerk: And how many nights will you be staying?
Customer: Four nights.
Clerk: Very good, sir. That’s a twin room with bathroom for four nights from July 24th to 27th. And what is the name, please?
Customer: Mr. and Mrs. McPherson.
Clerk: And have you any idea when you’d be arriving, sir?
Customer: Quite late.., perhaps about half past nine.
Clerk: Very good, Mr. McPherson. I’ve reserved the room for you. We look forward to seeing you tomorrow night.