16. The system of claim 14 , wherein the action generating device is configured for checking a state of the conversation parameter based on a preset check condition, and generating the at least one piece of candidate action data based on a result of the checking.
16. The system of claim 14 , wherein the action generating device is configured for checking a state of the conversation parameter based on a preset check condition, and generating the at least one piece of candidate action data based on a result of the checking. 17. The system of claim 16 , wherein the preset check condition comprises a slot default value check condition, an inter-parameter attribute dependency check condition, an inter-parameter attribute trigger check condition, a parameter value confirmation check condition and a parameter clarification condition.