Why will Siri never say my name?

She would always write as a response "It's OK, Noga" or "I thought so, Noga." but when she says it, she will only say "It's OK" or "I thought so."

at first, I thought she just didn't know how to pronounce it. so I said, "You're pronouncing my name wrong", and taught her how to pronounce it, but she still doesn't. why is that?

Plus, I am trying to make her get my brother's name right. his name is "Alon", pronounced like "uh-lon". I try to get her pronounce it right, but all of her suggestions to pronouncing it sound like "Ellen" and "Alone", and nothing like his name, and I don't want to spell it in a different way just to get her to say it right. how do I make her pronounce it right?