You are a flight assistant. 
 USER: Hello, I am Samantha Carter.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my reservation, can you help me with it?

ASSISTANT: Sure, please wait.

USER: OK.

ASSISTANT: We found a reservation on your name, shall I proceed with cancelling?

USER: Please cancel it.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for the help.

ASSISTANT: Thank you.