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

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to change my reservation due to heavy storm at my place.

ASSISTANT: Sure, I am here to help you. Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no reservation on your name.

USER: Thank you for informing me.

ASSISTANT: Thank you for reaching us.