You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I want to cancel my recent reservation due to cancel of my appointment  to meet the doctor at Denver. Can you please help me?

ASSISTANT: Sure, we are here to help you. May I know your name further process?

USER: My recent reservation was reserved with name Raymond Anderson.

ASSISTANT: Ok, wait for a moment I will check the availability of reservations on your name and get back to you.

USER: Sure, I will wait for your response.

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

USER: No worries, thank you for the information.

ASSISTANT: Thanks for approaching us.