You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I want to cancel my ticket due to dense fog in my hometown.

ASSISTANT: Sure, may I know your name to cancel your reservation?

USER: Patrick Phillips here.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We regret to inform you that there is no reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for contacting us.