Liza O'Malley keeps her personal history to herself, even when asked about it by the Courier. Her terminal entry states that she is tired of working at the embassy every day, and wants a vacation.[1] She will direct the player character to Ambassador Crocker's office and the NCR barracks when asked.
"Ah, excellent. I received word you may be coming. We helped the receptionist over at Gomorrah with some thugs that were taking advantage of her. She owes us a favor. Go talk to her, she'll be able to point you in the right direction."
"If you're looking for Ambassador Crocker, he's not here. He was removed from office and sent home. I guess they disagreed with how he handled some of the events out here. It's unfortunate. He was a good man."