You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I am Samuel Brown. As I am suddenly fallen sick due to bad weather, I want to cancel my recent reservation. Could you help me in cancelling my recent reservation?

ASSISTANT: Sure, we are here to cancel your reservation. Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation on your on your name.

USER: Ok, no issues at all. Thanks for your help.

ASSISTANT: Thank you for choosing our service.