Query: user: Will you find flights in Economy for three from NYC?
assistant: What's the destination?
user: Seattle, WA.
assistant: Departure and return dates?
user: Leaving 5th of this month. Return on the 7th.
assistant: American Airlines offers outbound flight that leaves at 6:05 am and return flight that leaves at 4 pm for $281.
user: Anything else?
assistant: Delta Airlines offers outbound flight that leaves at 2 pm and return flight that leaves at 3:15 pm for $282.
user: Ticket refundable?

Intent: Flights:SearchRoundtripFlights