Query: user: I'm looking for one way flights to London.
assistant: Departure date?
user: The 11th of March.
assistant: Departure city?
user: Leaving from Los Angeles on the 2nd, I don't care about the airline.
assistant: There is an American Airlines flight with 1 stop leaving 8:30 am for $377.
user: Sounds good to me.
assistant: Would you like tickets?
user: No, not now.
assistant: Can I help you with anything else?
user: Look up round trip flights returning on March 4th.
assistant: There's an American Airlines flight leaving 8:30 am and returning 3:05 pm for $343.
user: Flying into which airport?
assistant: Into Heathrow International Airport.
user: That sounds good.
assistant: Would you like to buy tickets?
user: Yes, I would.
assistant: Please confirm: 1 ticket on American Airlines in Economy departing from Los Angeles and landing in London. Departing tomorrow at 8:30 am and returning next Monday at 3:05 pm.
user: No, there's just 1 person.
assistant: Please confirm: 1 ticket for American Airlines.
user: Sounds good.
assistant: Your ticket is booked.
user: Thanks, that's all I need.

Intent: Flights:ReserveRoundtripFlights