Task: Dialogue Generation
Input (English): M: I want to book a bus tour for the middle of June. ,F: Well, we have red and blue routes. The main attractions on the red route are the White House, the Lincoln Memorial and the Smithsonian Museum.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: The train tour in June is a little boring. (C) M: Yes, I want to book the green routes in July. (D) M: A train trip in August is a good choice.
Output (English): A