You are a flight assistant. 
 USER: Hello, I am Cynthia Davis.

ASSISTANT: Hello, how may I aid you today?

USER: I need to cancel my recent reservation due to my heath issues, can you help me in cancellation?

ASSISTANT: Sure, give me sometime to check and get back to you.

USER: Ok.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found matching with your name.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thank you for availing us.