Methods and systems for voice dialogue with tags in a position of text for determining an intention of a user utterance

A voice dialogue system, comprising:

• a voice input unit configured to acquire a user utterance;
• an intention understanding unit configured to interpret an intention of utterance of a voice acquired by the voice input unit;
• a dialogue text creator configured to create a text of a system utterance;
• and
• a voice output unit configured to output the system utterance as voice data, wherein
• the dialogue text creator is further configured to create the text of a system utterance by inserting a tag in a position in the system utterance, and
• the intention understanding unit is interpret an utterance intention of a user in accordance with whether a timing at which the user utterance is made is before or after an output of a system utterance at a position corresponding to the tag from the voice output unit,
• wherein the dialogue text creator generates the system utterance as a combination of a connective portion and a content portion, and inserts the tag between the connective portion and the content portion, and the connective portion comprises one of an interjection, a gambit, or a repetition of a part of a user utterance previously acquired.