1. A speech communication system enabling a conversation with a conversation partner, comprising: a microprocessor; a speech recognition unit configured to recognize a speech content of the conversation partner; a speech processing unit configured to generate a response based on the speech content recognized by the speech recognition unit; an audio output unit configured to output auditory communications corresponding to the response generated by the speech processing unit; a touch sensing unit configured to recognize a touch input by the conversation partner; a control unit configured to determine whether or not to continue the conversation based on a recognition result from the touch sensing unit; and a network interface configured to communicate with an external network.