answer: Mr. Green tells #Person1# he'd better go back to the hotel by taxi. #Person1# offers to wait with him.
documents: #Person1#: Excuse me, what did you say you would like to do, Mr. Green?
  #Person2#: I said I'd better go back to the hotel. I'm meeting someone this evening.
  #Person1#: OK, how are you going back? By bus or taxi?
  #Person2#: I think I'd take a taxi. Do you know where I can get one?
  #Person1#: Oh, just wait by the roadside. I'll wait with you.
  #Person2#: OK, thanks. Are the taxis in London all black?
  #Person1#: Well, some of them are. Is this your first time in London?
  #Person2#: Yes, it is. Do you give extra money to the taxi drivers here?
  #Person1#: Oh, yes. Look, here's one. Taxi!
  #Person2#: Thanks. See you tomorrow.