You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can help you at present?

USER: As I am suddenly fallen sick due to bad weather, I would like to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, please share your name for cancellation.

USER: Sure, I am Mark Wilson.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Ok, I will wait.

ASSISTANT: Thanks for your time, there was no active reservation found on your name.

USER: Ok, Thank you.

ASSISTANT: Thank you for opting us.