You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you today?

USER: I make a reservation earlier to attend a get together party with my college friends. Due to some issues in college it got postponed. Can you please change my reservation?

ASSISTANT: Sure, may I know your good name to change your existing reservation?

USER: George Williams is my name.

ASSISTANT: Thank you for providing your name. There is no reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us .