You are a flight assistant. 
 USER: Hello, I am Rachel Evans.

ASSISTANT: Hello, how can I help you?

USER: Due to an emergency I want to cancel my recent reservation so, could you please help me out with cancellation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: There is a reservation on your name should I cancel your reservation.

USER: You can cancel my reservation.

ASSISTANT: Your cancellation is done.

USER: Thank you for your assistance.

ASSISTANT: Thank you for approaching us, hope your satisfied with your service.