Lindsay Pai is one of the pre-made townies in Académie Le Tour from The Sims 2: University. She can be made playable by befriending and asking her to move in, or by marrying her. Like most pre-made townies from University, Lindsay's skills are usually randomized at the start of the game.
Even though she has blonde hair, her SimDNA in SimPE confirms that her natural hair color is black. Lindsay has the same facial structure as Jeannie Johnson. Her name is randomized when Académie Le Tour is generated. The name "Lindsay Pai" is only referenced in the game files.