You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Debra Wright want to travel to NY-JFK to attend a family function.

ASSISTANT: Ok.

USER: Can you book a ticket on 11/16?

ASSISTANT: Sure, please share your return date?

USER: I will return on 11/18.

ASSISTANT: May I know your source point?

USER: I will depart from WA-SEA.

ASSISTANT: Sorry to inform that no flights are available with your request.

USER: Ok, thank you for your information.

ASSISTANT: Thanks for availing us.