A: Good norming, Can I help you?
B: Yes, I'd like to check out now.
A: Can I have your name and room number, please.
B: John Smith, room 1208.
A: May I have your room key, please?
B: Sure, here you are.
A: Just a moment, please. Mr. Smith. Here is your bill. Would you like to check it?
B: I'm sorry, what's the 20 dollars for?
A: That's for the drinks you ordered from your room.
B: I see.
A: How would you like to make payment, Mr. Smith?
B: I'd like to pay in cash.
A: That'll be 310 dollars.
B: Here you are.
A: Here's your change and receipt, Mr. Smith, I'll send a bellman up to get your luggage.
B: Thank you.
A: You're welcome, goodbye.