You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I will help you with it.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: I am Kenneth Miller.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We don't have any reservation on your name to cancel.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.