Query: user: I would like a one way flight on the 1st to ATL.
assistant: Which city would you like to leave from?
user: Chi-town.
assistant: There is an American Airlines flight that takes off at 7:50 am with 0 stops. The ticket is $125.
user: Which airport does it leave from?
assistant: O'Hare International Airport.
user: How about something else?
assistant: Delta Airlines has a flight at 11:55 am with 0 stops. That ticket costs $121.
user: It is Economy or Business class?
assistant: It's an Economy seat.
user: I'm looking for a flight.
assistant: When would you like the return flight?
user: It would like to return the 3rd of this month.
assistant: I've found 1 Delta Airlines flight at 11:55 am and returning at 5:45 pm. That ticket is $174.
user: ok.
assistant: Can I help you with anything else?
user: No and thank you for your help.

Intent: oos