You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: Jeffrey Turner here, due to an emergency I want to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure. Wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting. Reservation found on your name and it has been cancelled.

USER: Thank you.

ASSISTANT: Thank you.