An apparatus and method are provided for processing a user input in an electronic device. The method includes storing information associated with each of a plurality of users; receiving a user utterance associated with task execution of the electronic device; transmitting, to an external device, first data associated with the user utterance; receiving, from the external device, second data including information about at least one operation of the electronic device associated with the task execution, and at least one parameter for performing the at least one operation; identifying, as a target of the task execution, a first user from among the plurality of users based on the at least one parameter; inferring a location of the target based on information associated with the first user, which is included in the information associated with each of the plurality of users; moving the electronic device to a first location based on the inferred location; searching for the first user at the first location by comparing the information about the first user with information obtained at the first location; and in response to recognizing the first user at the first location, perform the at least one operation of the electronic device associated with the task execution.