You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to change my reservation as my meeting venue got changed to another place, can you please help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Please check the reservation on the name of Larry Parker.

ASSISTANT: Sorry, there is no reservation found under your name to change.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.