Query: user: I have to take a business trip, can you search flights for me?
assistant: Where will you be visiting?
user: I'll be flying into LAX.
assistant: Where will you be departing? When would you like to leave?
user: I'm leaving from NY on the 7th of this month.
assistant: When will you be coming back?
user: I'd like to get back on the 14th. I prefer American Airlines in Economy class.
assistant: I found an American Airlines flight that leaves at 3:40 pm. The return flight leaves at 6:20 pm. The ticket is $271.
user: That sounds good to me.
assistant: Would you like me to buy the tickets?
user: Yes, please book the ticket.

Intent: Flights:ReserveRoundtripFlights