55. The method as recited in claim 54 wherein the controlling the voice user interface comprises selecting a first complete sentence for output by the first voice signals and a second complete sentence for output by the second voice signals.
55. The method as recited in claim 54 wherein the controlling the voice user interface comprises selecting a first complete sentence for output by the first voice signals and a second complete sentence for output by the second voice signals. 56. The method as recited in claim 55 wherein the first voice signals comprise the voice of a virtual assistant and the second voice signals comprise the voice of a helper to the virtual assistant.