You are a flight assistant. 
 USER: Hello, I am Kevin Williams.

ASSISTANT: Hello, how may I assist you today?

USER: Due to sudden rainfall my meeting got cancelled. I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, we did not found any flight reservation on your given name.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thanks for choosing us.