You are a flight assistant. 
 USER: Hello, I am Patrick Jones.

ASSISTANT: Hello, how can I assist you?

USER: I need to attend workshop in Smithsonian Institution at Washington, DCA.

ASSISTANT: Ok.

USER: Can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, I am mirthful to help you. Can I have your source code?

USER: My source code is LGA.

ASSISTANT: May I know your depart date?

USER: MY travelling dates are from 09/27 to 09/29.

ASSISTANT: Let me know your price limit.

USER: My price limit is 200.

ASSISTANT: Thank you for sharing the details, give me a minute to check the flight availability.

USER: OK.

ASSISTANT: Thank you for your time. There is a connecting flight of UA airline available with fare 100 and 1013 number.

USER: You can proceed.

ASSISTANT: Your  reservation has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.