get an npc to follow a specific player?

How would i make an npc follow a specific player only (like an owner). I found this script but it gets the npc to follow everyone. (my last question got taken down for being "too broad", but i dont know what to do or how to get an answer, ive searched everywhere)

local larm = script.Parent:FindFirstChild("HumanoidRootPart")

local rarm = script.Parent:FindFirstChild("HumanoidRootPart")

  

function findNearestTorso(pos)

local list = game.Workspace:children()

local torso = nil

local dist = 100

local temp = nil

local human = nil

local temp2 = nil

for x = 1, #list do

temp2 = list[x]

if (temp2.className == "Model") and (temp2 ~= script.Parent) then

temp = temp2:findFirstChild("HumanoidRootPart")

human = temp2:findFirstChild("Humanoid")

if (temp ~= nil) and (human ~= nil) and (human.Health > 0) then

if (temp.Position - pos).magnitude < dist then

torso = temp

dist = (temp.Position - pos).magnitude

end

end

end

end

return torso

end

  

  

  

  

while true do

wait(math.random(1,5))

local target = findNearestTorso(script.Parent.HumanoidRootPart.Position)

if target ~= nil then

script.Parent.Humanoid:MoveTo(target.Position, target)

end

  

end

In line 66, I recommend making an if statement. For example;

if target.Name == "NameHere" then
    script.Parent.Humanoid:MoveTo(target.Position, target)
end

That code only fires if the Target's name is a certain name. You could do this for ranks aswell. But ofcourse, you would need to make a rank system.