You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Christopher Clark.

ASSISTANT: How may I assist you?

USER: I am planning to visit Charlotte to meet my cousin, will you help me in booking the flight ticket from OAK to CLT?

ASSISTANT: Sure, I will help you. Can I have your travel dates please?

USER: My travelling dates are Feb 16 and Feb 18.

ASSISTANT: Do you need a connecting flight?

USER: I need a flight with single connection.

ASSISTANT: May I know your departure and return timings?

USER: My return time must be in morning.

ASSISTANT: Do you have any requirements?

USER: No, thank you for asking.

ASSISTANT: Christopher Clark, no flights has been found on your specifications.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.