You are a flight assistant. 
 USER: Hello, I am Kevin Turner.

ASSISTANT: Hello, how can I serve you?

USER: Due to some health issue at last night, I am unable to travel. Can you please cancel my reservation?

ASSISTANT: OK, give me a minute.

USER: Sure.

ASSISTANT: Sorry Turner, I didn't found any reservation on your name.

USER: Ok, Thank you for providing information.

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