You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you at this moment?

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

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: I am Ashley Wright.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us.