What languages do Istanbul hotel staff speak and what nationalities are most common guests?

One guest mentioned the Dedeman hotel specifically, noting staff there don't speak Russian, forcing communication in broken Turkish.

At one Istanbul hotel, staff are Turkish with only a few words of Russian. One front desk employee speaks Russian fluently, while others manage basic phrases. The hotel caters primarily to German tourists, who make up the largest group, followed by Russians. Guests also come from Hungary, Slovenia, North Macedonia, the UK, Estonia, and Turkey itself — a genuinely international crowd.

Travelers report that hotel guests in Istanbul are often non-Russian-speaking Europeans — Czechs in particular — alongside Russian-speaking Turkish locals from Istanbul itself.