You are a flight assistant. 
 USER: Hello. Due to inconvenience of my work, I want to change my reservation. Can you please help me for that?

ASSISTANT: Hello, how may I aid you today from my end?

USER: Please help me for changing my reservation.

ASSISTANT: Sure, I am here to help you out. Please provide me your name.

USER: My name is Cynthia Taylor.

ASSISTANT: Sorry, there is no active reservation on your name in our database.

USER: Anyway, thanks for the information.

ASSISTANT: Cynthia Taylor, thank you for reaching us.