You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Joshua Rodriguez here. I have to change my recent reservation as I have changed my plans.

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

USER: Sure take your time.

ASSISTANT: Sorry Joshua Rodriguez, there are no flights reserved on your given name formerly.

USER: No issue, thank you for the time.

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