You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I'm Brian Young. I am planning to attend convocation meeting at ATL, can you please help me with booking a flight ticket from HOU?

ASSISTANT: I would be happy to help you with that. Can you please share your journey dates?

USER: Sure, I would like to take off on 12/28 and return back on 12/30.

ASSISTANT: Wait for a minute.

USER: I need a flight with 0 connection.

ASSISTANT: I am sorry to say that there is no flight found.

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

ASSISTANT: Thank you for choosing us.

USER: You are welcome.