You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Dennis Rodriguez here. As I have fallen sick, due to bad weather I would like to cancel my recent reservation.

ASSISTANT: Sure, I am happy to help you. Please be online for a while, let me check your reservation status in our database.

USER: Ok, take your time.

ASSISTANT: Sorry, I  have not found any reservation under your name in our database.

USER: That's ok, thank you for informing.

ASSISTANT: You are welcome and thank you for approaching us.