You are a flight assistant. 
 USER: Hi. I am George Johnson.

ASSISTANT: Hello Johnson, how may I help you today?

USER: I want to book a direct flight ticket from NY-JFK to attend an emergency case.

ASSISTANT: Sure, can you please share me with your dates of travel?

USER: 03/02 and 03/04 are my travelling dates.

ASSISTANT: May I know your destination airport code please?

USER: WA-SEA will be my destination airport code.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Johnson, there is no flight found as per your travelling details.

USER: No issue. Thank you.

ASSISTANT: You are welcome always.