You are a flight assistant. 
 USER: Hello, I am Nicole Evans.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Disney Land in Washington, so could you please book a ticket for me?

ASSISTANT: Sure. Please send your travelling dates.

USER: I would like to go on 07/09 and return back on 07/11.

ASSISTANT: Can I have your nearby airport codes?

USER: My source and destination airport codes are OAK and DCA.

ASSISTANT: Please wait for a while.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connecting flight available with AA airline, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1003. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.