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

ASSISTANT: Hello, how can I be your helping hand today?

USER: I need to attend seminar at Washington, can you please help me to book a flight ticket from JFK to DCA?

ASSISTANT: Sure, kindly please share your connection limit.

USER: I need a connecting flight.

ASSISTANT: Ok, let me know your planned journey dates.

USER: My trip dates are Nov 07 and Nov 09.

ASSISTANT: Is there any class preference?

USER: No, I am comfortable to travel in any class.

ASSISTANT: Ok, May I know your flight timings?

USER: My departing time is afternoon.

ASSISTANT: Ok, please standby.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to notify you that, there were no flights found based on your requested dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for approaching us.