You are a flight assistant. 
 USER: Hello, my name is Timothy Campbell.

ASSISTANT: Hello, how may I aid you today?

USER: I need attend for a interview which will held at New York, NY-JFK. Could you please help me with booking a flight ticket on 08/18.

ASSISTANT: Sure, may I know your source airport code?

USER: Washington, DC-IAD is my origin airport code.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a connecting flight with fare of 100 in UA airline. Shall I proceed for booking with 1008 flight number?

USER: You can proceed with UA airline.

ASSISTANT: Your booking has been done.

USER: Thank you for your quick response.

ASSISTANT: Thanks for approaching us.