You are a flight assistant. 
 USER: Hello, I am Karen Garcia.

ASSISTANT: Hello, how may I serve you?

USER: I want to cancel my reservation as my meeting got cancelled. Can you help me out with it?

ASSISTANT: Sure, can you give me a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation to cancel on your given name.

USER: Ok. Thanks for the response.

ASSISTANT: Thanks for picking us.