Query: user: I would like to book a flight.
assistant: What destination and when is your departure and arrival dates?
user: I'm traveling to SFO on the 13th of March from Seattle.
assistant: When is your departure date?
user: I would like to leave the 2nd of this month.
assistant: I found 4 flights. There is an Alaska Airlines flight at 12 pm and the return flight leaves at 2:55 pm. The cost is $136.
user: Are they any other flights available?
assistant: There is a flight with Delta Airlines that leaves at 6:10 am and returns at 8 am for $127.
user: That flight is good.
assistant: Would you like to book a ticket?
user: Yes, please book a ticket for Economy class.

Intent: Flights:ReserveRoundtripFlights