You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am William Brown.

ASSISTANT: How can I aid you?

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. Wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, There is no reservation found on your name.

USER: Ok, no issue. Thanks for your response.

ASSISTANT: Thank you.