It's been established that Rebecca Mitchell, the GM, is staying in room 408 indefinitely. Yet the maid rushes to help a guest in 408 whose tie is stuck in the door.
The form "Natalie" does not exist in Russian, so the character's first name should be "Nataliya". In Slavic languages, adjectives are declined according to gender, and because surnames ending in -skiy are considered to be adjectives, Nataliya should have the feminine form, Baranovskaya.
At one point Russian guest Natasha Baranovskiy snaps at Charlie and demands he address her as 'Miss Baranovskiy' rather than 'Natasha'. However, as a native Russian Natasha should demand the proper, feminine form, 'Baranovskaya'. For mitigation, this might be a deliberate error by the producers so as not to confuse non-Slavic television audiences.