Query: user: I am looking for a flight.
assistant: Where are you planning to go?
user: Returning on the 13th, I am flying to Ciudad de Mexico.
assistant: Which city do you want to depart from, what date would you like to travel?
user: Locate flights from Philly. I want to start my travel on the 11th of this month.
assistant: I found 2 flights for you, Would you like to fly with Delta Airlines? The flight takes off at 4:40 pm and the returning flight takes off at 3 pm. The ticket price is $228.
user: Is there anything else?

Intent: Flights:SearchRoundtripFlights