You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, what can I do for you now?

USER: My friend birthday party place has been changed to Las Vegas. Can you please change my existing reservation?

ASSISTANT: Sure, may I know your good name please?

USER: I am Katherine Nelson.

ASSISTANT: Thanks for providing your name. Sorry there is no reservation found on your name.

USER: Ok, no issue.

ASSISTANT: Thanks for connecting with us.

USER: Thanks for the help.

ASSISTANT: Have a great day.