You are a flight assistant. 
 USER: Hello. I am Benjamin Wilson.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation as I have fallen sick last night and I cant make my journey. Can you help me with cancellation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please hold on a moment.

USER: Sure.

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

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for reaching us.