How to tell if a part is not being touched?

I have a door that slides open when you touch a certain part, and closes automatically after 5 seconds. Problem is, I want it to close only if that part is not being touched. Is there a way to say something like:

if Part.Touched ~= true then

or something similar? (Assume Part is the part that you touch to open the door.) This is my current script:

door = script.Parent.Parent.DoorSlide
isOpen = script.Parent.Parent.IsOpen.Value
local Debounce = false

function MoveOpen()
    if Debounce then return end
    if isOpen == false then
    Debounce = true
    for i = 1, 80 do
        door.CFrame = door.CFrame + Vector3.new(-0.05, 0, 0)
        wait()
    end
    isOpen = true
    Debounce = false
    end
--This is where I think I need to add something else, but I don't know what to add
wait(5)
if isOpen == true then
    Debounce = true
    for i = 1, 80 do
        door.CFrame = door.CFrame + Vector3.new(0.05, 0, 0)
        wait()
    end
    isOpen = false
    Debounce = false
end
end

script.Parent.Touched:connect(MoveOpen)

Any help would be appreciated, even if the answer is quite obvious.