Query: user: Can you find me a round trip flight from Philadelphia
assistant: When are you leaving?
user: I want to leave on the 6th of this month
assistant: OK, where are you going?
user: I'm travelling to NYC
assistant: When are you coming back
user: I want one ticket with a return on the 12th of March
assistant: There's an American Airlines flight that leaves at 4:45 pm and has a 9:35 pm return flight for $64
user: That sounds awesome
assistant: OK, shall I book it?
user: Yes, book me economy class

Intent: Flights:ReserveRoundtripFlights