Systems and methods of training a model is provided. The system can identify an unlabeled data set with phrases received by a virtual assistant that interfaces with one or more virtual applications to execute one or more functions. The system can query the unlabeled data set to select a first set of phrases based at least on one or more confidence scores output by a surrogate model that corresponds to a third-party model maintained by a third-party system. The system can receive, via a user interface, indications of functions to be executed by the one or more virtual applications responsive to the selected first set of phrases. The system can provide, to the third-party system, the indications of functions for the selected first set of phrases to train the third-party model and configure the virtual assistant to execute a function responsive to a phrase in the first set of phrases.