You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I want to cancel my recent reservation due to some family problems. Can you please help me with this?

ASSISTANT: Sure, may I know your name to check your ticket from our database?

USER: Sure, I am Anthony White.

ASSISTANT: We regret to inform you that there is no active reservation found on your name to cancel.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for contacting us.