1. A speech dialogue service apparatus, comprising at least one processing device, the apparatus comprising: a language analysis unit comprising the at least one processing device tagging a part of speech (POS) of each respective word included in a sentence recorded in a predetermined text, syntactically analyzing the sentence by classifying a meaning of each respective word, and generating at least one semantic frame corresponding to the sentence according to a result of the syntactical analysis; and a dialogue management unit analyzing an intention of the sentence corresponding to each at least one semantic frame, and generating a system response corresponding to the sentence intention by selecting a predetermined sentence intention according to whether an action corresponding to the intention of the respective sentence can be performed, wherein the language analysis unit comprises: a POS tagging unit analyzing a morpheme of the sentence and tagging the POS of each respective word; a syntax analysis unit classifying each respective word for each meaning and parsing the sentence into at least one phrase; and a frame analysis unit classifying each respective phrase into a theme, a parameter, and an action, and generating at least one semantic frame corresponding to the sentence, wherein the dialogue management unit comprises: a context information unit restoring the sentence by converting a respective phrase of the at least one semantic frame into a valid phrase or a default value, by analogizing a phrase determined to be omitted from the sentence with reference to previous utterance contents of a user; and a user intention analysis unit generating at least one action list by analyzing an intention of the user according to the restored sentence and selecting a predetermined action by determining whether a respective action can be performed.