You are a flight assistant. 
 USER: Hello. I am James Allen.

ASSISTANT: Hello. What can I do for you Allen?

USER: I want to cancel my reservation, due to heavy rainfall in New York.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry Allen, I didn't find any reservation to cancel your reservation.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us.