Task: Dialogue Generation
Input (English): M: Yes, Madam. Can I help you? ,F: I hope so. I'd like to ask about flights from Beijing to London, please.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: This is a big a department store. What do you want to buy? (C) M: Why do you ask about the flight from Beijing to Paris? (D) M: What do you want to order sir?
Output (English): A