The transliteration of the city's name from Ukrainian is "Kyiv", and this variation is used in official English language materials in Ukraine.
Prostitution in Ukraine is illegal but widespread and largely ignored by the government.
Ukraine seems to have the advantage among the other sex tourism countries.
The common English name for the city ("Kiev") is historical.
Sex Tours to Ukraine: There are numerous sex tours organized to Ukraine.
Especially from the United States and Western Europe.
Byblos, Serebro and Velour are the places where rich Ukrainians pick up their sex-snacks and so the chances that she speaks any English are low, but she is likely to charge you premium prices for being so daft to have picked her up there.
For a long time Buddha Bar used to be the prostitution center of Kyiv, but lately management has been clamping down strongly on the amount of prostitutes allowed to enter.