12. The method of claim 11 , further comprising performing, by the processor, upon selection of the matching input mode: analyzing the IVR application grammar associated with the interaction node; generating a plurality of utterances based on the IVR application grammar corresponding to the interaction node, the plurality of utterances associated with respective weighted values; and choosing the utterance to be provided as the response to the IVR application based on the respective weighted values associated with the plurality of utterances.
13. The method of claim 12 , wherein the utterance is chosen from among the plurality of utterances generated based on the IVR application grammar corresponding to the interaction node.