How to make a textbox search for a player from a text?

So I was working on a trolling gui for a game of mine and if you typed someone's username it would keep loop tping to them, but how would i check if that name was in players. and how would I add the name to the script, and with loop tping to them if you touched them they would get flinged which is another script i found online.

togglebutton = script.Parent.Parent.TextButton

players= game.Players:GetChildren()

toggle = script.Parent.Parent.Toggle

repeat wait(0.1)
	

until script.Parent.Text == players.Name


	local player = script.Parent.Text


while toggle.Value == true do wait(0.1)
	game.Players.LocalPlayer.Character.HumanoidRootPart.CFrame = game.Players(player).Character.HumanoidRootPart.CFrame
end

togglebutton.MouseButton1Click:Connect(function()
	
	toggle.Value = not toggle.Value
	
end)

You can use GetPropertyChangedSignal to run a function every time a textbox's text changes: The script will check if that player's name is inside game.Players.

One way we could check if the text is a player's name is by doing game.Players:FindFirstChild(script.Parent.Text), but this is case sensitive and we probably don't want that.

How we'd make it not case sensitive is by going through the players and looking to see if the players name in lower case is the same as the text inputed in lower case:

function searchForPlayer(playerName)
	for _, player in pairs(game.Players:GetPlayers())do
		if string.lower(player.Name) == string.lower(playerName) then
			return player
		end
	end

	-- if we get here, we went thru all the players in game.Players and non of their names were playerName so the script will return nil
end

script.Parent:GetPropertyChangedSignal("Text"):Connect(function()
	--look inside game.Players to see if the text is a players name.
	--this is NOT case sensitive
	local player = searchForPlayer(playerName)

	
	if player  then
		--a player's name was typed into the textbox, 
		--TODO: this is where you'd write the code to teleport your player
	end
end)