You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What kind of help are you expecting from my side?

USER: Due to my ill health, I want to cancel my recent reservation.

ASSISTANT: That's so sad to hear. Hold on for a minute. I am sorry to inform you that there are no reservations with your name.

USER: My name is Alexander Nelson. Thank you for your information.

ASSISTANT: Thank you Alexander, have a good day.