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

ASSISTANT: Hello. How can I aid you?

USER: I would like to attend conferences in The Bank of America Stadium at Charlotte, NC - CLT.

ASSISTANT:  May I know your travel dates?

USER: Can you please reserve me a flight ticket from Houston, TX - HOU? My trip dates are 05/26 - 05/28.

ASSISTANT: Ok, please wait I will revert you.

USER: Ok.

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

USER: It's ok, not a problem. Thank you for your information.

ASSISTANT:  Thank you for availing us.