Script Help!

[Kamakaze]

Hi, Wasn't quite to sure how to name this topic.
I have scripted a "ban" and "unban" script that I use on a restaurant on UN for "rowdy" kids. Thing is what I was to do is make it so when you "ban" someone it add their account to a GUI and when a person in a certain guild says "banlist" it opens a GUI box with the banned accouts/players from the restaurant. Also, when you "unban" a player/account it removes the account from the GUI so we know it is gone.

If anyone could help me on this, that would be fantastic!
Thanks,
Joker