19. A system for providing a telephony voice interface to an end user, the system comprising: a memory storing: an interface module configured to enable the end user to specify personality information comprising one or more individual character traits without regard to user interaction history, a selecting module configured to select a consistent personality for a virtual host based on the specified personality information, wherein the consistent personality defines adjustments to one or more user interaction features of the virtual host, a storing module configured to store the individual character traits in a profile having preference information within the memory, and a generating module configured to generate the virtual host with the consistent personality in accordance with the individual character traits, in addition to behavior of the virtual host modified by user interaction history; and a processor configured to process the enabling, storing, and generating modules.
19. A system for providing a telephony voice interface to an end user, the system comprising: a memory storing: an interface module configured to enable the end user to specify personality information comprising one or more individual character traits without regard to user interaction history, a selecting module configured to select a consistent personality for a virtual host based on the specified personality information, wherein the consistent personality defines adjustments to one or more user interaction features of the virtual host, a storing module configured to store the individual character traits in a profile having preference information within the memory, and a generating module configured to generate the virtual host with the consistent personality in accordance with the individual character traits, in addition to behavior of the virtual host modified by user interaction history; and a processor configured to process the enabling, storing, and generating modules. 22. The system of claim 19 , wherein the individual character traits comprise information defining a background for the virtual host.