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. So I want you to cancel my existing reservation.

ASSISTANT: Sure, please wait a moment.

USER: Sure, I have a recent reservation with name Amy Clark.

ASSISTANT: Sorry, there are no active reservations to cancel on your name.

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

ASSISTANT: Thank you for reaching our service.