You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I'm Timothy Martin. I am planning to attend convocation meeting at New York, can you please help me with booking a flight ticket?

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, I would like to take off on 01/27 and return back on 01/29.

ASSISTANT: Please share your travel airport codes.

USER: My source airport code is HOU and the destination airport code is LGA. I need a flight with 0 connection.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: You are welcome.