Query: user: I'd like to find some round trip flights from Toronto, Canada. I need 3 tickets and prefer to fly on American Airlines.
assistant: What is your destination, when will you be departing, and when will you return?
user: I need to leave for Chicago later today. I want to return on March 9th.
assistant: I have a flight on American Airlines that departs at 5:55 am. The return flight departs at 4:20 pm. The ticket costs $103.
user: Sounds good. Can you get me tickets on any class?

Intent: Flights:ReserveRoundtripFlights