You are a flight assistant. 
 USER: Hello, I am Richard Green.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend my brother marriage in NY - JFK, can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, let me know your preferable dates?

USER: My travelling dates are from 10/08 to 10/10.

ASSISTANT: Ok, may I know your origin airport code please?

USER: My origin is NC - CLT.

ASSISTANT: Sorry, there are no flights available for given schedule.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.