Task: Dialogue Generation
Input (English): M: Hello, may I speak to Mr Brown? ,F: I'm sorry, he's out for lunch. Would you like to leave a message?
(A) M: No, thank you. I will go to his office and meet him there as he is in there right now. (B) M: No, thank you. I will call him until he comes back from lunch. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: No, thank you. I will go to have lunch with him.
Output (English): B