Query: user: I'd like to look at some round trip flight tickets.
assistant: I'd be happy to help. Let's get some details first. Where are you leaving from and traveling to? When will you begin your travels?
user: I will be traveling from Mexico City to San Fran on March 3rd.
assistant: When do you plan to return?
user: I will be coming back on the 12th.
assistant: Ther are 2 flights that meet your criteria. The first is an American Airlines flight for $156 that leaves at 2:55 pm and returns at 1:20 pm.
user: Can I return the ticket if I need to?
assistant: No, the ticket in nonrefundable.
user: Does it have any layovers?
assistant: No, there are 0 stops.
user: That will work. Can you see if there is an Economy ticket available for the flight?
assistant: You'd like 1 Economy ticket on the American Airlines flight that leaves Mexico City on March 3rd at 2:55 pm bound for San Francisco. It is set to return on March 12th at 1:20 pm. Is this correct?
user: Yes, that is correct.

Intent: Flights:ReserveRoundtripFlights