Query: user: I need a oneway flight for a trip.
assistant: When are you leaving and which location?
user: I will be leaving Vegas on the 10th with 1 person.
assistant: Where do you want to go?
user: I need to travel to Vancouver, BC.
assistant: There is a 9:30 am flight with 1 stop on American Airlines. The cost is $205.
user: Do you have any other options? I like United Airlines.
assistant: OK, there is a United Airlines flight leaving at 8:15 am with 1 stop. The ticket is $207.
user: OK, good. Can you search flights for me?
assistant: When do you want to return?
user: On Economy on the 12th of March.
assistant: There is another United Airlines flight leaving at 8:15 am and returning at 6:05 pm. The ticket price is $225.
user: Great, Can you help me with the purchase?
assistant: Yes, please confirm the information: Flight leaving Las Vegas in March 10th to Vancouver on United Airlines at 8:15 am and returning at 6:05 pm on March 12th. The class is Economy and 1 person for the ticket.
user: Yes, that's great/

Intent: Flights:ReserveRoundtripFlights