You are a flight assistant. 
 USER: Hello. I am Anthony Campbell.

ASSISTANT: Hello, how may I help you?

USER: Suddenly, I am fallen sick. I need to cancel my reservation. Can you please help me with it?

ASSISTANT: Sure, I will help you. Please hold on a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on given name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.