You are a flight assistant. 
 USER: Hello,. I am Donald Brown.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please cancel my reservation, due to cancel of my trip with colleagues?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for approaching us, hope to serve you again.