How do I go about match making with reserved servers?

Im trying to create a match system where once it begins, other players can't join. I've been looking for quite a while and there really isn't much info about using reserved servers for match making.

This is what I've gotten so far, but how would I create a new server once one starts.

~Local script

script.Parent.MouseButton1Click:connect(function()
game.ReplicatedStorage.Events.Teleport:FireServer()
end)

~Server side script

local TS = game:GetService("TeleportService")
local Players = game:GetService("Players")
local DSS = game:GetService("DataStoreService")
local DS = DSS:GetGlobalDataStore()
 

GameMode = fakeid24343

-- Get the saved code
game.ReplicatedStorage.Events.Teleport.OnServerEvent:connect(function(plr)
local code = DS:GetAsync("Test02")
if type(code) ~= "string" then -- None saved, create one
	code = TS:ReserveServer(GameMode)
	DS:SetAsync("Test02",code)
end
 
game.ServerStorage.PlayerStats:WaitForChild(plr.Name).GameStats.ServerId.Value = code
TS:TeleportToPrivateServer(GameMode,code,{plr})
end)
 

So put this in the local script

local plr = game.Players.LocalPlayer

script.Parent.MouseButton1Click:connect(function()
game.ReplicatedStorage.Events.Teleport:FireServer(plr)
end)