Query: user: Hello! Please let me know if there is any round-trip flights available?
assistant: Where is your plan of visit?
user: I'll be travelling to Chi-town on 4th of March.
assistant: From where will you leave?
user: I'll be starting from San Fran.
assistant: When is your return?
user: I will be returning on Thursday next week.
assistant: Okay! I've found 4 flights to your convenience. The one, American Airlines will leave at 3:20 pm and the return flight will leave at 7:05 am. The cost of the travel will be $181.
user: Is it a refundable or non-refundable ticket? Does the flight have any stops or zero stops?
assistant: Sorry that the ticket is non-refundable. The flight has 0 stops.
user: Thanks. Is there any other flights available on the same day for, 4 of us will be travelling.
assistant: Yup! The Delta Airlines flight will leave at 10:05 pm and the return flight will leave at 10:40 am. The ticket price is around $201.
user: Wonderful! Looks great to me.
assistant: Do you need anything to be assisted with?
user: Yup! Please can you help me to reserve the tickets?
assistant: Sure! Please can you confirm me that you wish to book in Delta Airlines that flies from San Francisco to Chicago on March 4th at 10:05 pm. The return journey will be on March 7th at 10:40 am and you wish to reserve 4 tickets in Economy class. Is that correct?
user: Perfect! You're very correct.
assistant: Okay! I've confirmed the ticket for you.
user: Which is the departure airport of the flight?

Intent: Flights:ReserveRoundtripFlights