Methods and systems using voice recognition can obtain complex data from a database using simple data obtained from a user. The database associates and stores complex data with simple data. The interactive voice response system prompts the user for simple information, such as a phone number, which can be interpreted using voice recognition. The speech-obtained simple data is then matched with the simple data stored in the database. If a match is found, the complex data (e.g., a street address) stored with the simple data is communicated to the IVR system. The IVR system communicates the complex data to the user and prompts the user to confirm whether the complex data is accurate. The database can be a third-party database such as a computer accessible phone directory or a credit bureau.