You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to travel from CLT to DFW, help me in booking a flight?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My travelling dates are June 03 to 05.

ASSISTANT: Do you have any class preference?

USER: I want business class.\.

ASSISTANT: Would you prefer to travel in a direct flight or a connecting flight?

USER: Any think is ok.

ASSISTANT: May I know your good name please?

USER: I am Karen Phillips.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.