Stop the if function once it's assigned the player?

Basically I'm assigning a player to a conveyor when they join the game. I currently have 2 conveyors setup but when I test it, the player is getting assigned to both. I'm not sure how to stop the function once it's found and assigned the player.

local foundCov = false

game.Players.PlayerAdded:connect(function(plr)
	for i,v in pairs(workspace.Config.ownerNames:GetChildren()) do
		numOfCov = i
	end
	for i = 1,numOfCov do
		if workspace.Config.ownerNames["owner"..i].Value == "" and foundCov == false then
			foundCov = true
			workspace.Config.ownerNames["owner"..i].Value = plr.Name
			return
		end
	end
end)