You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Helen Johnson.

ASSISTANT: How can I assist you?

USER: I am planning to attend business meeting at New York, can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you. Can you provide your regional source and destination airport codes?

USER: My source airport code is DCA and the destination airport code is JFK.

ASSISTANT: Can you provide your trip dates?

USER: Sure, I would like to take off on 07/09 and return back on 07/11.

ASSISTANT: I found a flight ticket in JetBlue airlines and there is a 1 drop in your trip. Can I confirm it?

USER: Yes, please proceed with the booking if the price limit is 200.

ASSISTANT: Ok, your flight ticket is done in 1006 flight with a fare of 100.

USER: Thank you for your help.

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