Query: user: Please help me to find one way flights.
assistant: Where will you be departing from?
user: I am flying out of Vegas.
assistant: Where are you flying to and when do you plan to leave?
user: I am going to San Francisco on 14th of March.
assistant: There are 4 flights that may work for you. There is an American Airlines flight that leaves at 5:30 am and has 0 stops. A ticket will cost you $97.
user: That flight sounds good to me.
assistant: Do you want me to book tickets for you?
user: Not now, maybe later.

Intent: oos