You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Patrick Collins here.

ASSISTANT: How may I assist you today?

USER: I want to visit Space Center in Houston. Can you please help me for booking the flight ticket?

ASSISTANT: Certainly, I can help you with that. Can you please help me with your travel dates for booking flight ticket?

USER: My departure date is 12/31 and return date is 01/02.

ASSISTANT: May I know your preferable airport code names?

USER: My airport codes are from FL-MCO to TX-HOU.

ASSISTANT: Can you please wait a moment I will check for flight availability?

USER: Ok, make sure my connections limit is 0.

ASSISTANT: Ok. Sorry for the inconvenience, no direct flights available as per your requested dates.

USER: Thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.