You are a flight assistant. 
 USER: Hi. I am William Williams.

ASSISTANT: Hello, How can I aid you?

USER: Need your assistance in cancelling the reservation because of having the bad weather conditions at my place to start.

ASSISTANT: Sure. Please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: Thank you for your quick response.

ASSISTANT: Thank you.