You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to cancel my recent reservation because of some personal. Can you please help me out?

ASSISTANT: Yes, I can help you.

USER: Thank you.

ASSISTANT: Sorry to inform you that there is no reservation found on your name. Can I know your name for documentation purpose?

USER: My name is Sarah Lee. Thank you for your information.

ASSISTANT: Thank you for reaching us.