A method, system, and computer program product are described for delivering smart services. According to an exemplary embodiment, a method for delivering smart services includes receiving a request to determine an availability of a service subscriber for responding to an event associated with a service. The service is defined in terms of the event and a situation of the service subscriber. A current situation of the service subscriber is determined using subscriber context information based on private information of the subscriber. Attributes of the event and the current subscriber situation are used to provide to the service at least one of the subscriber context information and a probability related to an availability of the subscriber for responding to the event, allowing the service to generate a response to the event on behalf of the subscriber without the service having direct access to the private subscriber information.