Automatic Modification of Communication Style in Dialogue Management

In task-oriented dialogues, there is often only one right answer the system can give. However, a lack of variation can seem repetitive and unnatural. Humans change the way they express something, e.g. by being more or less concise. We aim to approximate this ability by automatically varying the level of verbosity and directness of a given system action. In this work, we illustrate how verbosity and directness may be utilised in adaptive dialogue management and present different approaches to automatically generate varying levels of verbosity and directness for given system actions. Thereby, new and unforeseen system actions can be created dynamically.