You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Owing to an emergency, my live concert got cancelled.

ASSISTANT: Sure, we are here to help you with cancellation.

USER: So I want you to cancel my recent reservation.

ASSISTANT: Sure. To proceed further, may I know name?

USER: Sure, Helen Jones here.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your name to cancel it.

USER: Ok, no worries at all. Thank you for your kind service.

ASSISTANT: Thank you for choosing our service.