Query: user: I need to find economy flights for 1 from Toronto, Ontario.
assistant: What is your departure time and return date?
user: I would like to leave ar0ound night 10:30 and return on the 13th.
assistant: Would you like me to check a specific airline? What is your departure date and where is your destination?
user: My favorite is Delta Airlines. I'm going to NYC on March 3rd.
assistant: At what time do you want to return?
user: I would like to leave at 6:30 pm.

Intent: Flights:ReserveRoundtripFlights