You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Virginia Miller.

ASSISTANT: What can I do for you Miller?

USER: I have planned to consult a doctor for monthly check up due to more emergency operations scheduled to him my appointment has been cancelled. help me in cancelling my reservation.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry Virginia Miller, no reservation done previously on your name.

USER: Ok fine, thanks for your response.

ASSISTANT: Thank you for approaching us, have a great day.