You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation due to some health issues, so please aid me in this.

ASSISTANT: Sure, can I know on whose name the ticket has been booked?

USER: Sure, my name is Amy Allen.

ASSISTANT: Ok, Please hold on.

USER: Sure.

ASSISTANT: Sorry Allen, no reservation found on given name. Thank you for reaching us, have a nice day.