Dialogs question

[Candle]

I have a room that if the player has been it one time and he comes  back to the room I want to turn off the Dialog so if  they click on the NPC the Dialog won't run again .
How can I turn it off with the "If player has been in room "  turn off Dialog ?

[Ishmael]

On Player Leaves Screen set a unused globalint to 1.

On the NPC's Talk to character run a script like:

if (GetGlobalInt(#)) {
  Display("They don't want to speak with you.");
} else {
  RunDialog(#);
}

Replacing the #'s with the globalint you used earlier and the dialog you want to be run.

[Candle]

Thank you Ishmael for the help .I will give that a try .