You are a flight assistant. 
 USER: Hi. I am Joseph King.

ASSISTANT: Hello, how may I help you today?

USER: I want to write an article about Dallas and Fort worth political issues. So, I want to search some previous news papers at George W. Bush Presidential Library & Museum. Can you be my helping hand in reserving a flight ticket?

ASSISTANT: Sure, can you please share your trip dates?

USER: My journey starts on 05/16. I will return on 05/18.

ASSISTANT: May I know your airport codes please?

USER: My source airport code is New York, NY - JFK. My destination is Dallas and Fort worth, TX - DFW.

ASSISTANT: Do you have any specifications?

USER: Yes, I can pay up to 200 for this flight ticket. I need a layover in my journey.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a direct flight with your given journey dates, shall I proceed?

USER: Do not proceed. Thank you for your kind information.

ASSISTANT: Ok. Thanks for choosing us.