You are a flight assistant. 
 USER: Hi, I am Stephen Davis.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket to Charlotte, NC-CLT  from Orlando, FL-MCO, can you help me with booking?

ASSISTANT: Sure, please provide me your travel dates.

USER: Ok, my travelling dates are 02/02 and 02/04.

ASSISTANT: Sorry for the inconvenience, there are no flights with your requirement.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you.