What will the man do in the evening?

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