You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Owing to an emergency, my live concert got cancelled. So I want you to cancel my existing reservation.

ASSISTANT: Sure, I am pleased to help you. May I know your name please?

USER: Sure, Michael Lee here.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a reservation on your name and it has been cancelled as per your request.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a good day.