Translation of specialize in Spanish

We could not believe how difficult it was to find a decent room in this four star hotel. I went to the reception desk and complained about our room and about the attitude and bad service.
You don't speak Russian? It's not so easy to speak this. I think, my English isn't very strong at all. But I hope to improve once I have the chance to write someone whose mother language is English...
This moment by itself made the flight and its delay worth. Although we regarded Arequipa as a hub on the way to Chile, it turned out to be a very charming city.