You are a flight assistant. 
 USER: Hello, I am Jerry Lewis.

ASSISTANT: Hello, how may I aid you today?

USER: I want to attend a important conference meeting at Los Angeles, CA-LAX. So please help me in booking a flight ticket from Charlotte, NC-CLT?

ASSISTANT: Sure, can I know your travelling dates? Do you need direct flight or connecting flight?

USER: My travelling dates are from  09/13 to 09/15. I need a direct flight.

ASSISTANT: Ok, thank you for providing information. Sorry, there is no direct flight.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.