You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can aid you today?

USER: I want to cancel my recent reservation, due to heavy rainfall at my destination.

ASSISTANT: Sure, please provide your name to check your reservation?

USER: Sure, my name is William Gonzalez.

ASSISTANT: I regret that there is no reservation found on your name.

USER: Ok, thanks for your kind response.

ASSISTANT: Thanks for approaching us, have a nice day.