Trying to make a cash giver that only works once per person. Can anyone help me?

Hi, I'm trying to make a cash giver for advanced tycoon but I need it to only work once per person so if I use it another person can use it right after but I can't. Sorry if that's confusing help appreciate! Here is the script I have right now what should I change I'm a beginner scripter local ting = 0 --debouncer

function onTouched(hit)

if ting == 0 then --debounce check
ting = 1 --activate debounce
check = hit.Parent:FindFirstChild("Humanoid") --Find the human that touched the button

if check ~= nil then --If a human is found, then

	local user = game.Players:GetPlayerFromCharacter(hit.Parent) --get player from touching human
	local stats = user:findFirstChild("leaderstats") --Find moneyholder

	if stats ~= nil then --If moneyholder exists then
		local cash = stats:findFirstChild("Cash") --Get money
		cash.Value  = cash.Value +100 --increase amount of money by the number displayed here (5000)
	 wait(0)
	  --wait-time before button works again
	end

end

ting = 0 --remove debounce
end

end

script.Parent.Touched:connect(onTouched)

local users = {} --Empty table
local debounce = false --A simpler debounce, in my opinion ;)
function onTouched(hit)

	if not debounce then --If debounce is false...
		debounce = true --Debounce!
		hum = hit.Parent:FindFirstChild("Humanoid") --Find the human that touched the button

		if check then --If there's a humanoid

			local plr = game.Players:GetPlayerFromCharacter(hit.Parent)
			if plr then --If a player touched it,
				local found
				for i, plr_name in pairs(users) do --Loops through the users table
					if plr_name == plr.Name then --If the entry matches the player's name,
						found = true --They've used it
						break --End the loop
					end
				end
				local stats = plr:FindFirstChild("leaderstats")
				if stats and not found then --If they weren't found in the table
					table.insert(users, plr.Name) --Adds the player's name to the users table
					local cash = stats:FindFirstChild("Cash")
					if cash then
					
						cash.Value  = cash.Value + 100 --increase amount of money by the number displayed here (5000)
						wait(0)
					end
				end
			end
		end
		debounce = false
	end
end

If there's something you didn't understand, let me know!