Task: Dialogue Generation
Input (English): F: Welcome, how may I help you today? ,M: I'd like a pizza, please. ,F: Then you'll be happy to hear that today. All our pizzas are on sale 2 for one. ,M: You're right, that is great! ,F: What size would you like? ,M: A medium one would be perfect. Thank you. ,F: Which kind you want? ,M: I like seafood on my pizza. ,F: We have 2 seafood pizzas, fish and crab. ,M: Crab sounds good, today.
(A) F: OK, a medium pizza with crab, and you will get two since today we are on sale. (B) F: One medium pizza with crab. Sorry, this type of pizza is not on sale today. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: A large one with fish, and you don't want to enjoy today's sale price, right?
Output (English): A