You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Michelle Phillips.

ASSISTANT: Nice to meet you Phillips.

USER: I have a health problem due to which I would like cancel my reservation. Please help me in cancellation.

ASSISTANT: Ok, please hold on for a moment. Sorry to say this Michelle, we did not found a with booked with your name.

USER: That's fine. Thank you for the information.

ASSISTANT: Thank you for reaching us.