What is Andi Dorfman real birthday and real name the same with Nayer?

Model nayer performs with Pittbull sometimes and I see her birthday is in either the year 1988 or 1987. What is her real birth year? And same with new bachelorette andi dorfman who I see has 2 birthdays not sure which one is correct-April 3,1987 and January 7,1988. And andi dorfman real name on one site reads Andy smith dorfman so but it also comes up as Andi dorfman.. So is that her real first and last name?