You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your good name?

USER: I want to cancel my ticket which is reserved on Edward Johnson, because on the sudden demise of my grand father.

ASSISTANT: Sure, please hold on.

USER: Sure.

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

USER: Yes, please proceed to cancel.

ASSISTANT: Your ticket has been cancelled successfully, the amount will be credited to your bank account in a week.

USER: Ok, Thanks for assisting me.

ASSISTANT: Thank you for making us to serve you today.