Query: user: I plan to take a short flight, can you help me buy tickets?
assistant: Where will you be leaving from?
user: I am leaving San Fran on March 1st. I plan to travel on an Economy flight.
assistant: Are you travelling with a preferred airline such as Air Canada or Air France? When do you plan to return?
user: I prefer to fly with United Airlines and I plan to be back on the 4th of this month.

Intent: Flights:ReserveRoundtripFlights