You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: My name is Brian Johnson, I want to cancel my reservation due to cancel of my client meeting.

ASSISTANT: Sure, I will help you. Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to say that no reservation was found in our database on your name.

USER: No issue, thanks for your service.

ASSISTANT: Thank you for opting us.