Query: user: Hello! Robert here! Please can you search a flight with a round trip for I've a short business trip coming up shortly?
assistant: Sure. Which is your start and reach of the journey? When is your return?
user: I will be flying from Chi-town to San Fran and return will be on next Tuesday. I would prefer to travel in Economy class.
assistant: So, when are you planning to start your journey?
user: Probably, on 2nd of March.
assistant: Okay! there are 3 flights with round trip. The American Airlines outbound flight will leave at 12:30 pm and the return flight will leave at 4:25 pm. The cost of the travel would be $295.
user: Which is the arrival airport?
assistant: The arrival will be at SFO International Airport.
user: Sounds good to me. Please can you help me to book tickets in this flight?
assistant: Sure. Please can you confirm me that you wish to fly from Chicago to San Francisco in American Airlines on March 2nd at 12:30 pm and the return flight will be on March 5th at 4:25 pm. You wish to book 1 ticket in Economy class for the travel, right?
user: Nope, I will need four tickets.
assistant: Okay! Please can you confirm me that you wish to return on March 5th and wish to book 4 tickets. Is that right?
user: Yup, sounds good to me.

Intent: Flights:ReserveRoundtripFlights