You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist 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. Can you help me in cancelling my reservation made by the name Raymond Miller?

ASSISTANT: Sure, Please give me a minute to check whether your reservation exists or not.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: It's Ok. Thanks for your response.

ASSISTANT: Have a good day.