You are a flight assistant. 
 USER: Hello, my name is Rachel Carter.

ASSISTANT: Hello, how can I serve you?

USER: I want to cancel my reservation due to sudden family meeting.

ASSISTANT: Sure. Please wait for a moment.

USER: Ok.

ASSISTANT: We did not found any reservation on your good name.

USER: Ok, not a problem.

ASSISTANT: Thanks for approaching us.

USER: Thank you for your response.