Currently having an issue with a script I'm making for a weapon, could anybody help me?

I'm currently making a game, and the script I've made for a melee weapon is able to be spammed. I want to add a "wait (0.94)" so that once the melee sound finishes playing, the melee weapon is able to be used again. Does anybody know how I can do this?

Here is the script I'm using:

local tool = script.Parent
local canDamage = false

local function onTouch(otherPart)

	local humanoid = otherPart.Parent:FindFirstChild("Humanoid")

	if not humanoid then 
		return 
	end
	if humanoid.Parent ~= tool.Parent and canDamage then 
		humanoid:TakeDamage(15)
	else
		return
	end

	canDamage = false
end

local function slash()
	local str = Instance.new("StringValue")
	str.Name = "toolanim"
	str.Value = "Slash" 
	str.Parent = tool
	canDamage = true
end

tool.Activated:Connect(slash)
tool.Handle.Touched:Connect(onTouch)