Hello!! I was trying to make it where if NOT named "HitboxForBackStabs" THEN the function activates?

function onTouchedNotHit(part) 
    if part.Name == "HitboxForBackStabs" then --//Im Trying To Make It Where If A Part ISNT Named "HitboxForBackStabs" Then This Function Takes Effect, How Do I Do That?

script.Parent.Parent.Parent.Head.MISSPart.BillboardGui.TextLabel.TextTransparency = 0
            wait(1.5)
            script.Parent.Parent.Parent.Head.MISSPart.BillboardGui.TextLabel.TextTransparency = 1
            print("Missed Enemy")

    end 
end 

script.Parent.Touched:connect(onTouchedNotHit)