You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Jeffery Williams, I want a direct flight to New York to meet my grand father. Can you book a flight with in fare of 500?

ASSISTANT: Sure, may I know when are you planning to travel?

USER: I will travel on 09/04 and return on 09/06.

ASSISTANT: Kindly provide your airport codes.

USER: My source point is Seattle, WA-SEA and my destination is NY-JFK.

ASSISTANT: Ok, let me check what flights are available for you.

USER: Sure.

ASSISTANT: Thanks for waiting, there are no flights available at this moment.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.