You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to cancel my reservation because of my health issues. Can you please help me out?

ASSISTANT: Can you please tell me your name?

USER: Sure, my name is Michael Harris.

ASSISTANT: Sorry Harris, No reservation found with your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: You are welcome.