1. An information processing system comprising: circuitry configured to: acquire an ID of a specific user from a tag possessed by the specific user to identify the specific user; recognize a given target for communication with the specific user based on signals detected by a plurality of sensors arranged around the specific user by identifying a command within the signals, the given target being separate from the specific user; estimate a position of the specific user in accordance with the signals detected by any one of the plurality of sensors; select a group of sensors from the plurality of sensors that is optimal for acquisition of the signals detected by the plurality of sensors based on the estimated position of the specific user, a direction of the specific user and a position of the mouth of the specific user; output the signals acquired by the group of sensors to the given target; identify access destination information corresponding to the given target for acquiring other signals from the given target based on the recognized given target; process the other signals acquired from another plurality of sensors around the given target in response to the output signals; and select a subset of a plurality of actuators arranged around the specific user to output the other signals to the specific user based on the estimated position of the specific user, wherein after selecting the group of sensors, the circuitry performs super directivity of the group of sensors via a delay-and-sum array processing and null generation processing directed at the mouth of the specific user.