answer: Chaowei wants a flight to London on May 1st, but it's full. Then #Person1# helps Chaowei to book a one-way economy ticket at 9:30 a. m. May 2nd.
documents: #Person1#: Hello, China Travel Agency. May I have your name?
  #Person2#: Chaowei please.
  #Person1#: Hi Chaowei, how can I help.
  #Person2#: Yes. I'd like to travel to London. So I want you to make a reservation for me on May 1st.
  #Person1#: Okay Chaowei, just a moment, please. I'm sorry but the flights are fully booked on that day. The next available flight is on May 2nd. They have two flights, one is at 9:30 a. m. and another at 2:00 p. m. Both flights have seats available.
  #Person2#: That's great! I'd like to take the first available flight. I'll need an economy ticket.
  #Person1#: One way trip or round trip?
  #Person2#: One way trip. What's the fare, please?
  #Person1#: Economy fare for one way trip is 2, 300 yuan.
  #Person2#: I see. Is my ticket confirmed then?
  #Person1#: Yes, I have confirmed your ticket.
  #Person2#: Here is 2, 300 yuan.
  #Person1#: Thank you Chaowei. Here is the ticket and receipt. Have a good time.