Query: user: I need round a round trip flight on the 7th of March leaving Las Vegas going to Phoenix. Can you help me?
assistant: When will you be returning?
user: I will be returning on the 14th of this month.
assistant: I have found 1 flight that fits your criteria. There is a flight with American Airlines that leaves at 4:40 pm and returns at 6:25 am and only costs $92.
user: Are those tickets refundable?
assistant: No they are not.
user: Okay, sounds good. Can you help me reserve a flight in Economy?

Intent: Flights:ReserveRoundtripFlights