Query: user: Please help me find a round trip flights.
assistant: Where are you going?
user: To NYC.
assistant: When do you plan to leave and come back? And where you are coming from?
user: I am planning to leave on the 1st until the 8th and I am coming from San Francisco.
assistant: How about American Airlines for only $221 with an outbound flight leaves at 8:30 pm and return flight leaves at 4:45 pm?
user: When does mt return and onward flight arrive?
assistant: Return flights arrives at 8:11 pm and return flight arrives at 5:56 am.
user: Any other available flights?
assistant: How about Southwest Airlines for only $223 with an outbound flight leaves at 9:20 pm and return flight leaves at 5:55 pm?
user: Any other available flights?
assistant: How about United Airlines for only $220 with an outbound flight leaves at 5:50 am and return flight leaves at 6:05 am?
user: That one is good. Please help me buy the tickets.

Intent: Flights:ReserveRoundtripFlights