Disclosed is a communication device including a first communication part, a calling processing part, and a second communication part. The first communication part generates a response by a virtual communication party to a user's input and outputs the response from an output unit to realize first communication. The calling processing part controls a communication unit and performs calling processing on a communication device of a real communication party to call the real communication party when the first communication is realized by the first communication part. The second communication part controls the communication unit to supply the user's input accepted by the input unit to the communication device of the real communication party, acquires a response to the user's input from the communication device of the real communication party, and outputs the response to the output unit to realize second communication.