Query: user: Can you find me a one-way flight?
assistant: For what date?
user: For March 10th.
assistant: Where do you want to leave from?
user: I'm going from Los Angeles.
assistant: And where are you going?
user: I'm going to Vancouver.
assistant: I found an Alaska Airlines flight leaving at 8:40 pm. It has 0 stops and the cost is $156.
user: Are there any others?
assistant: American Airlines has one with 1 stop that leaves at 3:05 pm. It costs $202.
user: Are there any more?
assistant: Delta Airlines has one with 0 stops leaving at 10:55 am for $135.
user: Which airport does the onward flight leave from and when does it arrive?
assistant: It's at LAX International Airport and arrives at 1:59 pm.
user: That sounds good, but could you also check round trip flights?
assistant: When do you want to return?
user: I want to get back March 12th.
assistant: I found 1 flight for you. It's Delta Airlines flight leaving at 10:55 am and the return flight leaves at 3:20 am. The cost is $148.
user: What airport does the onward flight leave from and when does it arrive?
assistant: It leaves from LAX International Airport and arrives at 1:59 pm.
user: That sounds good. I'd like to get economy class tickets, can you find that for me?
assistant: To verify: You want 1 economy class ticket to fly from Los Angeles to Vancouver on Delta Airlines, March 10th at 10:55 am. Then return March 12th on a flight leaving at 3:20 am.
user: No I need tickets for four people.
assistant: Okay, that's 4 tickets to leave March 10th.
user: That's right. What time will my return flight arrive and to which airport?

Intent: Flights:ReserveRoundtripFlights