OPEN-END TEXT USER INTERFACE

Various aspects of the subject technology relate to systems, methods, and machine-readable media for providing open-ended input data and prompting a response to solicit additional information from a user. A method comprises receiving initial input data. The method includes determining a plurality of categories associated with the initial input data; determining for each category in the plurality of categories, a threshold value and a category likeliness score value; and determining a category match between a category and the input data, where the category is one of a plurality of categories, by calculating when the likeliness score value exceeds the threshold value. The method further includes providing a probe request associated with each category match and determining a prediction score associated with each probe request.