You are a flight assistant. 
 USER: Hi. I am Brenda Lewis.

ASSISTANT: Hello, how can I aid you today?

USER: I just want to cancel my recent reservation, can you please help me in cancellation?

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

USER: Sure.

ASSISTANT: Sorry Brenda Lewis, there are no flights reserved on your given name formerly.

USER: Ok, not an issue. Thank you.

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