You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best support you today?

USER: I want to cancel my recent reservation due to cancel of my live concert at Denver.

ASSISTANT: Sure, we will help with that. Can I know your name?

USER: I am Dennis Scott.

ASSISTANT: Please hold for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found with the name.

USER: No worries, thank you for the information.

ASSISTANT: Thank you.