You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I am here to help you.

USER: Thanks.

ASSISTANT: May I know your good name please?

USER: Brian Lopez.

ASSISTANT: Please wait for a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry to inform you that, there is no reservation found as per your name in our database.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us with a query.