Query: user: Could you look up some round trip flights?
assistant: Where are you planning to visit and leave from? What are the dates you would like?
user: I'd like to travel to Ciudad de Mexico from SFO on the 11th of March.
assistant: When would you like to leave?
user: There'd be 3 people leaving on next Tuesday. I'd like a flight with United Airlines.
assistant: I found a United Airlines flight for 1 ticket. It leaves at 9:15 am and returns at 8:45 pm. It will cost $239.
user: Where does the flight arrive?
assistant: It arrives at Benito Juarez International Airport.
user: When does the onward flight arrive?
assistant: It will arrives at 8:05 pm.
user: Okay, could you purchase the tickets for me?

Intent: Flights:ReserveRoundtripFlights