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.

Intent: Flights:SearchRoundtripFlights