How to insert a different font in one text frame

Hi

I have text frame, I want to insert two information with two different font and font size.

example: My name is YYYY

My name is  - Arial

YYYY - Verdana.

var height = 100;

var f = new File("/Users/test/Desktop/NAME.ai");

var doc = app.open (f)

var text1 = doc.textFrames.pointText( [10,-height+10] );

text1.contents = "My name is YYYY";

Thanks in Advance