QUESTION ANSWERING is used to provide unknown information to the user. Not long ago, the websites listed questions and upon clicking the question, provided an answer. Now, many websites try to engage the user in a dialogue, using a chatbot. When the user asks a question, the website asks for his e-mail. No further dialogue. Only a few websites have a chatbot capable to engage the user in a dialogue, with various success.
Our Dialogue System provides probable and accurate answers to questions. The answers are probable when the System does not have sufficient information to provide an accurate answer. For example, if we ask "Where are my trousers?", the answer can be "Probably in the wardrobe". Of course, the trousers can also be in the washing machine, hanged to dry after washing, etc. Also, if we say "John is married to Ann.", our chatbot will ask "Do they have children?". Of course, such a statement can give rise to other questions as well. The dialogue with the System can be continued only if the user asks something or tells something, in writing. The System will not start the conversation first and will not continue the conversation by itself. The Dialogue System can remember the following user information, such as location of a key, medicament and money. For example, if the user writes "My blood pressure medicament is on the table.", the System will remember where is the medicament. If the user forgets where is his blood pressure medicament, the user can ask the System "Where is my blood pressure medicament?". The System will retrieve the information. This ability of the chatbot can be extended to cover any valuable information.