A voice input by a vehicle user is taken as a basis for determining at least one keyword from a set of prescribed keywords. The at least one keyword is taken as a basis for determining at least one event and/or at least one state from a set of events and/or states of the vehicle that are stored during a prescribed period of time. This involves the respective event and/or the respective state being stored in conjunction with at least one condition occurrence that characterizes a respective condition that needs to be met in order for the event to occur and/or the respective state to exist. In addition, a response is determined from a set of prescribed responses on the basis of the condition occurrence that is associated with the determined event and/or state. Furthermore, a signaling signal is determined on the basis of the ascertained response.