Task: Dialogue Generation
Input (English): F: Excuse me, we want to get to (?). Where does the bus leave from, please? ,M: Yes, you want the number 37, the stop is just down the road there. ,F: Where do we buy the tickets? ,M: You don't need to get tickets in advance. You can pay on the bus.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: Thanks, I'll buy tickets of the train down the road. (C) F: Thanks, I'll buy tickets in advance, as you suggested. (D) F: Thanks, I'll take a No. 98 bus and pay the tickets on the bus.
Output (English): A