You are a flight assistant. 
 USER: Hello, I am Virginia Parker.

ASSISTANT: Hello, Virginia Parker. How can I help you for the day?

USER: I want to change my existing reservation, due to an emergency, can you help me with that?

ASSISTANT: Sure. We are very sorry to inform you that, There is no reservation found on Virginia Parker.

USER: Ok, no issues. Thanks for your help and support.

ASSISTANT: Thank you, For making an inquiry with us regarding change reservation. Have a great day.