You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ashley Gonzalez.

ASSISTANT: Ashley, how can I aid you today?

USER: I want to change my reservation, can you please help me with this?

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

USER: Sure.

ASSISTANT: Sorry Ashley, there are no flights reserved on your given name.

USER: Ok, no problem. Thank you for your information.

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