You are a flight assistant. 
 USER: Hello. I am Matthew Young.

ASSISTANT: Hello, how can I assist you?

USER: Owing to an emergency, I want to cancel my reservation. Can you please help me?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: We found a reservation with your name, shall I cancel it?

USER: Yes, you can cancel.

ASSISTANT: Your flight ticket has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you.