You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can i help you?

USER: I am Stephanie Carter. I am planning to visit a CNN centre in Atlanta, so please book a flight ticket within a price limit of 500?

ASSISTANT: Sure. May I know your travelling dates?

USER: I want to travel on 09/09, and need to catch return flight on 09/11.

ASSISTANT: Can you share me your airport codes?

USER:  I need to leave from my nearest airport OAK to reach ATL.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: There is a flight 1004 Hawaiian airline and price 200 with a connection. Shall I proceed?

USER: Proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thank you.