How to create a new reversed server and save it in my data store?

So I have this code:

local userIdJoiningReservedServerIdStore = game:GetService('DataStoreService'):GetDataStore('UserIdJoiningReservedId')
local jobIdToReservedServerIdStore = game:GetService('DataStoreService'):GetDataStore('JobIdToReservedServerId')

local function getTeleportInfoForUsername(username)
	local userId = game.Players:GetUserIdFromNameAsync(username)
	if not userId then
		return false, 'User by name '..username..' does not exist. Did you type the name wrong?'
	end
	local success, errorMsg, placeId, jobId = game['Teleport Service']:GetPlayerPlaceInstanceAsync(userId)
	if not success then
		return false, errorMsg
	end
	local reservedServerId = jobIdToReservedServerIdStore:GetAsync(jobId)
	if not reservedServerId then
		return true, 'Success', {
			reservedServerId = nil,
			placeId = placeId,
			jobId = jobId
		}
	end
	return true, 'Success', {
			reservedServerId = reservedServerId,
			placeId = placeId,
			jobId = jobId
		}
end

local function teleportPlayerToReservedServer(player, reservedServerId, placeId)
	userIdJoiningReservedServerIdStore:SetAsync(tostring(player.UserId), {
		reservedServerId = reservedServerId,
		placeId = placeId,
		time = os.time()
	})
	game['Teleport Service']:TeleportToPrivateServer(placeId, reservedServerId, {player})
end

local function teleportPlayerToUsername(player, username)
	local success, errorMsg, teleportInfo = getTeleportInfoForUsername(username)
	if not success then
		return errorMsg
	end
end

game.Players.PlayerAdded:Connect(function(player)
	player.Chatted:Connect(function(msg)
		local tp = teleportPlayerToUsername(player, msg) --[[ im lazy im gonna change this later]]
		print(tostring(tp))
	end)
end)

but how c ould I create a new reversed server and save it in the datastore? (I got this code from the dev forum/hub)