You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking the flight ticket from MCO to CLT?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travel dates are Dec 21 and Dec 23.

ASSISTANT: Do you need a single connecting flight?

USER: I prefer to travel in business class with single connection.

ASSISTANT: Can I know your other specifications?

USER: Please proceed with above details.

ASSISTANT: May I know your name?

USER: Stephen Lee.

ASSISTANT: Sorry, there are no flights available on your travelling dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.