Making a Victory state point with pop up window

Unity Engine
1

Hello, im fairly to unity and programming. I want it so when my character reaches a certain point on the map there will be a victory window that pops up to tell me if i would like to retry or go back to the main menu. Any help is appreciated and patience is also! Thank you much!

2

You can use GUI.Label and GUI.Button for such a thing.

Some useful stuff:
Unity GUI in general
GUI.Label
GUI.Button

Something like this:

function OnGUI(){
  GUI.Label(Rect(Pos X, PosY, sizeX, sizeY),Text);

  if(GUI.Button(Rect(Pos X, PosY, sizeX, sizeY),"Retry")){
      Application.LoadLevel("Levelname");
  }

 if(GUI.Button(Rect(Pos X, PosY, sizeX, sizeY),"Main Menu")){
      Application.LoadLevel("Menu");
  }
}

That should work and is pretty simple to begin with.