You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald Perez.

ASSISTANT: Ronald Perez, how can I aid you today?

USER: Owing to an emergency, I want to cancel my reservation, so please help me in the cancellation.

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

USER: Ok.

ASSISTANT: Sorry Ronald Perez, there are no flights reserved on your given name formerly.

USER: Not an issue. Thank you.

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