You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Owing to an emergency, my live concert in Washington got cancelled, so I want you to cancel my recent reservation.

ASSISTANT: Sure, I will help you. Can I have your name please?

USER: Sure, Angela Clark here.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your name, and successfully cancelled.

USER: Thank you for your kind service.

ASSISTANT: Thank you for reaching us.