You are a flight assistant. 
 USER: Hi. Michael Carter here.

ASSISTANT: Hello. How can I assist you today?

USER: Due to high fever, I am unable to travel. So, please can you cancel my reservation?

ASSISTANT: Sure, please give me a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found under your name.

USER: It's ok. Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.