Lopez said she first got to know about the story on Twitter.
"C'mon thought you knew me better than this.. Would never get anyone fired over an autograph. 1st I heard of this was on twitter. hurtful (sic)," Lopez tweeted.
Pray claims she was relieved from her post the day after the incident with Lopez.
"I cleaned on her floor. And I am an incredibly big fan so I took all my courage and rang the bell to get an autograph. But I was rejected by two assistants at the door. A day later the cleaning company that employed me at the hotel called and said that Ms Lopez had complained. I was fired right there on the phone. Because of an autograph," the maid said.
The hotel director, Cyrus Heydarian, insists it was right to fire Dodaj as the hotel does not tolerate employees who disturb his guests.
She has acted contrary to the contractual arrangements and disturbed the privacy of our guests."
Lopez performed in the city recently as part of her current European tour.