Task: Dialogue Generation
Input (English): M: Let's go shopping. I need a new jacket and you can get that purse you wanted. ,F: Oh, I change my mind, I ended up spending my money on shoes instead. I do need to return a scarf, though.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Why do you return this scarf? It's beautiful. (C) M: Who will exchange her shoes with you? (D) M: Nice choice! This purse is really nice.
Output (English): B