You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to cancel my reservation due to my planned event got cancelled. So please help me with that.

ASSISTANT: Sure, may I know your name for the cancellation process?

USER: Thank you. Myself John Hall.

ASSISTANT: Your reservation found. Are you sure for this cancellation?

USER: Yes, please proceed with cancellation.

ASSISTANT: Your cancellation done with our end.

USER: Thank you for your help.

ASSISTANT: Welcome, thank you for reaching us.