You are a flight assistant. 
 USER: Hello, I am Ryan Thomas.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I would like to go to a event in Washington, so could you aid me in booking a flight ticket to Washington?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, I am planning to start on 10/11 and return back on 10/13.

ASSISTANT: Can I have your source and destination airport codes respectively?

USER: My source and destination airport codes are LAX and IAD.

ASSISTANT: Can I have a moment please? I will check the availability.

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

ASSISTANT: There is a direct flight available with AA airline, shall I proceed? We are ready to give you 10% discount, as you are precious customer for us.

USER: Ok, please proceed for further in business class.

ASSISTANT: Your booking is done with the flight number 1009. After deducting the discount, your fare goes around 100.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for opting our services, have a nice day.

USER: Welcome.