You are a flight assistant. 
 USER: Hello, I am Margaret Jackson.

ASSISTANT: Hello, how may I support you today?

USER: Can you please help me in booking a flight ticket to DC-DCA from NC-CLT?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are from Feb 29 to Mar 02.

ASSISTANT: Do you need any specifications?

USER: I need to depart at afternoon.

ASSISTANT: Please hold for a while.

USER: I prefer to travel in connecting flight. Ok.

ASSISTANT: Sorry to say that, there are no flights available based on your details.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.