You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Donna Harris here. I want to cancel my recent reservation due to some health problem. Can you help me in that?

ASSISTANT: Sure Harris, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry Harris, there is no reservation found as per your name to cancel your reservation.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome.