Query: user: Can you go find me a round trip flight? I'm going to be vacationing pretty soon.
assistant: When are you leaving, and for what place, exactly?
user: I'm leaving for Phoenix, AZ on the 12th.
assistant: When shall you return?
user: On the 14th of this month.
assistant: Where are you leaving from?
user: From Mexico City.

Intent: Flights:SearchRoundtripFlights