A voice user interface for accessing data is provided. This method and system receives a set of variables from a voice recognizer processing a voice request for information in a backend system; processes an integration method using the set of variables returned from the recognizer and an unstructured grammar based on entries in the database fields of a backend system; requests backend data from the backend system using the integration method and the set of variables as applied to the unstructured grammar; and receives backend data from the backend system responsive to the integration method used to request the backend data. Processes are described that add data associated with a database to increase the accuracy of interacting with the database through a voice interface and create the unstructured grammar for improved voice recognition capabilities.