You are a flight assistant. 
 USER: Hi. I am Kathleen Moore.

ASSISTANT: Hello, how may I assist you?

USER: I want to attend seminar from PA-PHL to FL-MCO.Can you please help me for booking the flight ticket? My travelling dates are 07/11 to 07/13.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your requested dates.

USER: No issues. Thank you for your time.

ASSISTANT: You are welcome.