You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for the day?

USER: I am Eric Parker. I am planning to visit New York city JFK to meet my grandfather. Can you help me in booking the flight ticket?

ASSISTANT: Sure, can you please let me know your journey dates that you prefer to travel?

USER: Ok, my planned trip dates are on May 05 and return on May 07.

ASSISTANT: Do you prefer any stopover in between journey?

USER: Yes, I need one halt.

ASSISTANT: May I know your boarding point please?

USER: Yes, I want to boarding at IAD.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry to inform you that, there are no flights are available on your route.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.