Query: user: I'm looking to find some options for roundtrip flights.
assistant: Your destination please?
user: Going to Chicago.
assistant: Where are you departing from and what is your return date?
user: Leaving from Vancouver and planning to return on the 8th of March.
assistant: Leaving when please?
user: I'm planning to leave on March 4th and I'd like a United Airlines flight.
assistant: I have 1 United Airlines flight leaving at 3:15 AM which comes back to 12:45 PM and that ticket price is $338.
user: Okay, I'd like to buy four economy tickets please.
assistant: Confirming a United Airlines flight from Vancouver to Chicago departing March 4th at 3:15 AM and returning March 8th at 12:45 PM for 4 economy passengers.
user: Perfect, thank you.
assistant: The reservation has completed successfully.
user: What's the arrival time of the return flight?
assistant: That is 7:49 PM.
user: Thank you very much.
assistant: May I help you with something else?
user: Yes, I'll need a car.
assistant: What kind of car would you prefer and when would you like to have it?
user: Just a small car and I'll need it at approximately 17:30.
assistant: Are you intending to pick that up from O'Hare International Airport?
user: Yes I am.

Intent: RentalCars:ReserveCar