You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assess you?

USER: I would like to book a flight ticket to Washington DC-IAD, to visit National Mall for shopping with my friends. Can you aid me in booking flight ticket?

ASSISTANT: Sure, I can help you out. May I know your source airport code?

USER: My source is Orlando, FL - MCO.

ASSISTANT: Ok, will you please provide your moving dates?

USER: Sure. I want to fly on 11/16. I need to catch return flight on 11/18.

ASSISTANT: Sure, wait for a while.

USER: Ok.

ASSISTANT: In the meanwhile, may I know your name?

USER: Donald Hernandez, is my name.

ASSISTANT: There is a flight available in Frontier airlines and the ticket fare is 100, do you want me to proceed your ticket?

USER: Sure, please proceed.

ASSISTANT: Donald, your flight ticket booking is confirmed in 1018 plane number. Have a great journey.

USER: Thanks for helping me at the right time.