You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Samuel Clark.

ASSISTANT: How can I assist you now?

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

ASSISTANT: Sure, I will help you with that. Can you please mention the travelling dates of your journey?

USER: Sure, I would like to take off on 05/25 and return back on 05/27.

ASSISTANT: May I know the airport codes please?

USER: My source airport code is HOU and the destination airport code is LGA.

ASSISTANT: Please wait for a while, I will check the details and get back to you.

USER: Ok, but please make sure that the connection limit is 1.

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

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

ASSISTANT: Do you have any other plans to travel?

USER: No, Thank you.

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

USER: You are welcome.