A. we are all booked up for Flight 802 on that day B. what about the fare C. I'd like to make a reservation to Boston next week Agent: Good morning. The United Airlines. What can I do for you? Caller: Yes,【D1】______ Agent: When do you want to Ay? Caller: Monday, September 12. Agent: We have Flight 802 on Monday. Just a moment please. Let me check whether there're seats available. I'm sorry【D2】______ Caller: Then, any alternatives? Agent: The next available flight leaves at 9: 30 Tuesday morning September 13. Shall I book you a seat? Caller: Er...It is a direct flight, isn't it? Agent: Yes, it is. You want to go first class or coach? Caller: I prefer first class,【D3】______? Agent: One way is $ 176. Caller: OK. I will take the 9: 30 flight on Tuesday. Agent: A seat on Flight 807 to Boston 9: 30 Tuesday morning. Is it all right, sir? Caller: Certainly.