Conventional behavior in business communication characterizes complex obligatory control of the speech norms, pragmatic restrictions and prohibitions, complicated and strengthened by social behavior rules and norms. Regulation of information density and portioning information, cognitive process control, on the one hand, and coordination mode of attitudes and emotions coordination, on the other hand, organize the interaction processes in business dialogues. They structure and organize communication according to the purposes of participants. Official interaction zone claims stronger control to observe conventional rules and norms than non-official and half-official ones. They structure and organize communication and are used as a basis for elaboration of communicative and social roles in business communication. They are realized by the illocutionary stereotype schemes.