Helsinki slang is a regional dialect of the city. It combines influences mainly from Finnish and English, and has traditionally had strong Russian and Swedish influences. Finnish today is the common language of communication between Finnish speakers, Swedish speakers, and speakers of other languages (New Finns) in day-to-day affairs in the public sphere between unknown persons. Swedish is commonly spoken in city or national agencies specifically aimed at Finland-Swedish speakers, such as the Social Services Department on Hämeentie or the Luckan Cultural centre in Kamppi. Knowledge of Finnish is also essential in business and is usually a basic requirement in the employment market.