How do I break this loop when it finds an an empty value?

I am trying to make a part teleport the player to a part (lets call this door) that is not taken, so that if multiple players touch "door" it will line them up instead of teleporting a player to a position that is taken, but when I run this code it does not stop, and instead goes through all of the parts stopping at the last one.

local Door = script.Parent.Parent
Door.TeleIn.Touched:Connect(function(p)
	local plr = game.Workspace:WaitForChild(p.Name)
	wait()
	if closed.Value ~= true then -- if it should teleport the player
		for _,v in pairs (spots:GetChildren()) do -- gets the 'spots' to teleport to
		if v.using.Value ~= true then -- if that spot is empty
			plr.Humanoid.WalkSpeed = 0
			plr.HumanoidRootPart.CFrame = CFrame.new(v.Position) -- teleports player
			v.using.Value = true -- sets that position as taken
			break -- this should stop the loop where it is
		end
	end
	end
end)