You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking a flight ticket from IAD to JFK to attend a seasonal festival?

ASSISTANT: It's my pleasure to help you. May I know your planned trip dates?

USER: My planned journey dates are from Apr 23 to Apr 25.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer only direct flight for my journey.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Could you help me with your name please?

USER: I am Larry Adams.

ASSISTANT: Sorry, there is no flight available on this route for the given dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.