Query: user: I need to plan a trip. I would like to search round trip flights, please.
assistant: Sure, when would you like to depart?
user: I will need to leave this Sunday for my business trip.
assistant: Where are you planning to depart from, and where would you like to go? When would you like your return flight?
user: I am traveling from SFO to Chi-town, and I want to come back on the 6th of this month.
assistant: I found 4 flight options for you. American Airlines has an outbound flight leaving at 3:20 pm, with a return flight at 12:30 pm, and the ticket price is $265.
user: That flight will work for me. I would like to buy any class of tickets for four people traveling as a group.
assistant: You would like to book 4 Economy tickets on American Airlines from San Francisco to Chicago departing March 3rd at 3:20 pm and returning March 6th at 12:30 pm. Are these details correct.
user: Yes, that all sounds correct.
assistant: Great, your ticket is confirmed. Thank you.
user: When does the return flight land?
assistant: The return flight arrives at 8:11 pm.
user: How many stops will the flight have? Is the ticket refundable if I have to adjust my travel plans?

Intent: Flights:ReserveRoundtripFlights