Query: user: Will you find round trip flights?
assistant: What's the departure date and destination?
user: I plan on visiting Chi-town on Economy on the 2nd.
assistant: From where?
user: American Airlines leaving from London, UK.
assistant: What's the return date?
user: March 4th.
assistant: American Airlines offers an outbound flight that leaves at 0:10 am and return flight that leaves at 4:30 am for $424.
user: Terrific.
assistant: Want to buy tickets?
user: Yes for 2.
assistant: Please confirm 2 Economy tickets for American Airlines from London to Chicago that departs on March 2nd and returns on March 4th. Onward flight departs at 0:10 am and return flight departs at 4:30 am.
user: Great. Is ticket refundable? Departing from which airport?

Intent: Flights:ReserveRoundtripFlights