You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to depart from OAK and I want to  return from LAS. Can you please help me in booking the flight  ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travel dates are Sept 12 and Sept 14.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is George Davis.

ASSISTANT: We found a direct flight, flight number: 1015, price: 200, airline: Spirit.

USER: Please proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.