1. A computer-implemented method, comprising: identifying, via a processor, events completed via a device associated with a user; based on the events, identifying, via the processor, a sequence of events completed by the device; comparing, via the processor, the sequence of events completed at the device with predefined sequences of events which result in respective conversion actions to identify partial sequences of events from the predefined sequences of events corresponding to at least a portion of the sequence of events completed at the device; computing, via the processor, scores for the partial sequences of events, each of the scores indicating a proximity of a respective one of the partial sequences of events to a completion of a conversion action from the respective conversion actions; and selecting, via the processor, invitational content to deliver to the device based on a highest score from the scores for the partial sequences of events.