A system comprising an electronic apparatus in a first area of a first room of a home, an external apparatus in a second area of a second room of the same home and a server, the electronic apparatus comprising: a microphone; a communication interface; and a processor configured to: receive a first voice through the microphone based on a user uttering the first voice, transmit a voice signal corresponding to a digital conversion of the first voice to the server, receive from the server a first response information corresponding to the voice signal, the first response information being provided from a search based on acquired utterance elements of the first voice, receive a user sensing signal from the external apparatus through the communication interface, the user sensing signal being generated by the external apparatus by a sensor capable of sensing a user motion in front of the external apparatus, based on a movement of the user moving outside the first area being sensed and the user sensing signal being received from the external apparatus, transmit the first response information to the external apparatus for provision to the user, wherein the processor is configured to, based on a second voice signal being received through the communication interface within a preset time from when the first voice is received, transmit the first response information and the second voice signal to the server, receive from the server a second response information corresponding to the first response information and the second voice signal, transmit the second response information to the external apparatus, and based on the second voice signal being received through the communication interface after the preset time from when the first voice is received, transmit third response information obtained from the server based on the second voice signal to the external apparatus, wherein the second voice is received through a microphone of the external apparatus by the user uttering the second voice. a microphone; a communication interface; and a processor configured to: receive a first voice through the microphone based on a user uttering the first voice, transmit a voice signal corresponding to a digital conversion of the first voice to the server, receive from the server a first response information corresponding to the voice signal, the first response information being provided from a search based on acquired utterance elements of the first voice, receive a user sensing signal from the external apparatus through the communication interface, the user sensing signal being generated by the external apparatus by a sensor capable of sensing a user motion in front of the external apparatus, based on a movement of the user moving outside the first area being sensed and the user sensing signal being received from the external apparatus, transmit the first response information to the external apparatus for provision to the user, wherein the processor is configured to, based on a second voice signal being received through the communication interface within a preset time from when the first voice is received, transmit the first response information and the second voice signal to the server, receive from the server a second response information corresponding to the first response information and the second voice signal, transmit the second response information to the external apparatus, and based on the second voice signal being received through the communication interface after the preset time from when the first voice is received, transmit third response information obtained from the server based on the second voice signal to the external apparatus, wherein the second voice is received through a microphone of the external apparatus by the user uttering the second voice. receive a first voice through the microphone based on a user uttering the first voice, transmit a voice signal corresponding to a digital conversion of the first voice to the server, receive from the server a first response information corresponding to the voice signal, the first response information being provided from a search based on acquired utterance elements of the first voice, receive a user sensing signal from the external apparatus through the communication interface, the user sensing signal being generated by the external apparatus by a sensor capable of sensing a user motion in front of the external apparatus, based on a movement of the user moving outside the first area being sensed and the user sensing signal being received from the external apparatus, transmit the first response information to the external apparatus for provision to the user, wherein the processor is configured to, based on a second voice signal being received through the communication interface within a preset time from when the first voice is received, transmit the first response information and the second voice signal to the server, receive from the server a second response information corresponding to the first response information and the second voice signal, transmit the second response information to the external apparatus, and based on the second voice signal being received through the communication interface after the preset time from when the first voice is received, transmit third response information obtained from the server based on the second voice signal to the external apparatus, wherein the second voice is received through a microphone of the external apparatus by the user uttering the second voice.