F: May I help you? ,M: Yes, when is the next train to London? ,F: Oh, let me check. It leaves in 20 minutes. ,M: One ticket please.
(A) F: How much money do you want to withdraw? (B) F: OK, this is your ticket for the train leaving in 20 minutes. (C) F: This is your ticket for trains leaving in 50 minutes. (D) F: I am really sorry, I did not catch that. Would you slow down, please?
B