You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Kevin White. Due to health issues I could not attend the seminar.So I would like to cancel my recent reservation.

ASSISTANT: Sure, I can help you. Give me a minute.

USER: Sure.

ASSISTANT: Thanks for your time. We dinot found any reservation by this name.

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

ASSISTANT: Thank you for reaching us.