How can I limit how many players can teleport to a certain place at a time?

So I'm making a game, and I want to limit how many players can touch a block and teleport at a time. Here is the teleport script:

function onTouch(part) if part.Parent.Humanoid ~=nil then part.Parent:MoveTo(script.Parent.Parent.Tele2.Position) script.Parent.Parent.Tele2.Script.Disabled = true wait(0) script.Parent.Parent.Tele2.Script.Disabled = false end end script.Parent.Touched:connect(onTouch)

Is there anything I could add to it so only 2 people can teleport within 2 minutes or so? And maybe have an error message when a player tries to teleport when 2 people already teleported within the 2 minutes? Thanks!