You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to visit Oakland, CA-OAK.Can you please help me for booking the flight ticket?

ASSISTANT: Sure, could you please provide your preferable travel dates?

USER: The preferable dates are from 07/26 to 07/28.

ASSISTANT: Can you please help me with the source airport code?

USER: The source code is from NY-EWR.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Jonathan Wilson.

ASSISTANT: Jonathan, there is a flight available with AA airline and the price 200. Shall I proceed to book a flight ticket?

USER: Ok, proceed with my booking.

ASSISTANT: Your booking is confirmed with 1010 flight number.

USER: Thank you for your service.

ASSISTANT: You are welcome. Thank you for choosing our service, have a great day.