Function Line break

Function Line break

question about line breaking,

i'm creating a fiction that will display a script for people to use when they make a call..
the following code is what im using, 
But i cant get the return to use \n, or any type of line break.
Any help? 

( (input.contactowner == "Lenni Cabral") )  
{
    return "Yes \n Lenni";
}
else
{
    return "notlenni1";
}