A user terminal device includes a display; at least one sensor; a communication module; and a processor operatively connected to the display, the at least one sensor, and the communication module, wherein the processor is configured to, based on receiving a user utterance voice, determine whether or not a response screen corresponding to the user utterance voice is able to be provided through the display on the basis of at least one of a sensed value obtained from the at least one sensor or an inactive period of the display, based on determining that the response screen is unable to be provided through the display, receive current status information of at least one external device connected to the user terminal device through the communication module, determine one external device among the at least one external device to display the response screen on the basis of the current status information of the at least one external device, obtain the response screen to the user utterance voice, and transmit the response screen to the one external device through the communication module.