Thanks for the response. Well, I turned Option 1 off forever because I don't want the player to be able to ask that more than once. If the player has the necklace and chooses Option 1, everything will play out accordingly and will end the dialog with the NPC forever as he leaves the game.
If the player doesn't have the necklace when choosing Option 1, I still want that option to be turned off forever and for Option 3 to be turned on. So then when the player finds the necklace, talks to the NPC again, I want Option 3 to be turned off and Option 2 to be turned on.
If the player doesn't have the necklace when choosing Option 1, I still want that option to be turned off forever and for Option 3 to be turned on. So then when the player finds the necklace, talks to the NPC again, I want Option 3 to be turned off and Option 2 to be turned on.