You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: My name is Betty King, I would prefer to book a flight ticket.

ASSISTANT: OK, Can you please provide your booking details?

USER: Sure, I would prefer to travel to Seattle WA-SEA from New York NY-JFK. And my departure is on 04/03 and return on 04/05.

ASSISTANT: OK, Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flight found with your request.

USER: OK, Thanks for your valuable information.