How to teleport a player randomly between two games?

I have a script where it will teleport the player after 10 seconds randomly between two games, but the script will not teleport to a different game and in studio it tells me GameNotFound. Script:

local TeleportService = game:GetService("TeleportService")
local gameID = 1537690962
local player = game.Players.LocalPlayer
local gameId = 1537690962

wait(10)

local random = math.random(2) -- Randomly chooses either 1 or 2

if random == 1 then
    TeleportService:Teleport(gameID, player)
elseif random == 2 then
    TeleportService:Teleport(gameId, player)
end

Make a list of Place IDs:

list = {"000000000", "000000000"}
clickdetect = script.Parent -- I prefer to use ClickDetectors because they are easier to control than Touched events that require debounce techniques
tpservice = game:GetService("TeleportService")
function Teleport(player)
	for i = math.random(1, #list) do
		tpservice:Teleport(tonumber(list), player)
		wait(1) then break
	end
end
clickdetect.MouseClick:Connect(Teleport)

And PLEASE stop using local variables. You people clearly don't understand Lua 5.1.