You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Larry Edwards.

ASSISTANT: Larry Edwards, how can I aid you today?

USER: I need to cancel my reservation as my plan to go for trekking got cancelled. Can you help you?

ASSISTANT: Sure, I am here to help you. Hold on for a moment. Let me check.

USER: Sure.

ASSISTANT: Sorry Larry Edwards, there are no flights reserved on your given name formerly.

USER: That's Ok, thanks for your response.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.