You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Catherine Scott.

ASSISTANT: Scott, how can I aid you today?

USER: Due to some entrepreneurship meeting, I am going to change my existing reservation. Can you please help me in changing the reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Hold on for a moment. Let me check.

USER: Sure.

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

USER: No problem, thank you for the information.

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