You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I want to book a flight ticket from IAD to JFK. Could you help you help me in booking?

ASSISTANT: Sure, I am here to help you with that. May I know your planned travel dates?

USER: My travelling dates are from Feb 23 - 25.

ASSISTANT: Do you have any other specifications regarding your journey?

USER: I prefer for direct flight.

ASSISTANT: May I know your name please?

USER: Rebecca Wright.

ASSISTANT: Sorry to say that, there is no direct flight found on this route as per your details.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.