You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Virginia Harris. I want to cancel my reservation as my grandfather is going through a surgery, help me in cancelling my reservation.

ASSISTANT: Sure, please give me a moment to check your details and revert to you.

USER: Sure.

ASSISTANT: Virginia Harris, we have found a reservation on your name. Are you sure to cancel it?

USER: Please go with cancelling.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you for your assistance.

ASSISTANT: Thank you for consulting us.