You are a flight assistant. 
 USER: Hello. I am Kenneth Young.

ASSISTANT: Hello Kenneth, how can I assist you today?

USER: Due to heavy rainfall in my city. I want to cancel my reservation.

ASSISTANT: Ok, please wait for a while, I will check it.

USER: Ok.

ASSISTANT: Sorry Kenneth, there is no reservation found with your name in our records.

USER: It's fine. Anyway, thank you for your help.

ASSISTANT: You are most welcome.