Disclosed is a control method. The control method of the present invention is a control method for controlling a vehicle using an agent module which outputs a dialogue-type response to an input speaking of an occupant, the method including: activating the agent module through a predetermined input; generating a first dialogue with the occupant through an activated voice input unit; maintaining the first dialogue in a temporary stored state for a preset period of time; and loading the first dialogue in the temporary stored state when a call command for the first dialogue is recognized, and generating a second dialogue when the call command for the first dialogue is recognized after elapse of the preset period of time.