Query: user: Please help me find flights.
assistant: When are you leaving?
user: Will be leaving on March 3rd.
assistant: Where will you be leaving from and where do you plan to go?
user: I will visit SF and I am from Las Vegas.
assistant: When do you plan to go back?
user: Plans to get back on March 14th and I would like to travel on Economy.
assistant: I have found 3 flights for you from American Airlines, it departs at 6:40 am and returns at 5:30 pm. It costs $108.
user: That sounds good but I am planning to go on a short trip. Can you help me book the flight?
assistant: Please do confirm the following details: you will be leaving from Las Vegas to San Francisco. Flight is from American Airlines that will leave the day after tomorrow and will return on March 14th. Departure time is at 6:40 am returns at 5:30 pm, economy seating for 1 passenger.
user: No, there's just 1 person.
assistant: Please do confirm the following details: flight us from American Airlines for 1 passenger.
user: No, I mean please book flights for 2 persons.
assistant: Please do confirm the following details:you will be leaving from Las Vegas for 2 passengers.
user: Yes, that right!
assistant: Booking confirmed.
user: When does we arrive upon departing?

Intent: Flights:ReserveRoundtripFlights