You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Shirley Lewis here.

ASSISTANT: Hello Shirley Lewis, how can I help you?

USER: I want to cancel my recent reservation which I have done, due to health issues. Can you please help me out with it?

ASSISTANT: Sure Shirley Lewis, can you give me a moment.

USER: Ok, sure.

ASSISTANT: Sorry to say that there is no reservation by the name Shirley Lewis.

USER: Ok, not a problem. Anyways, thank you for the information.

ASSISTANT: Thank you for approaching us.