Can you help me why this doesn't work?

[LlamaFridge]

Thanks for everyone

I click on npc but no menu loads up.

local NPC_ID = 666333


function GossipOnTalk(Unit, Event, player)
		Unit:GossipCreateMenu(100, player, 0)
			Unit:GossipMenuAddItem(9, "Welcome, My name is Kyrie's Mistress", 1, 0)
		
				Unit:GossipSendMenu(player)
end


RegisterUnitGossipEvent(666333, 1, "GossipOnTalk")

[AlienCCL]

NPC must be flagged as Gossip.