To allow a user to obtain an expected response message in an efficient manner when the user sends a chat message concerning an inquiry.SOLUTION: When a multi-cloud chat service providing device 10 accepts an inquiry message from a user terminal 20, it sends the inquiry message to an AI chat cloud service system 30, and receives a response message corresponding to the inquiry message from the AI chat cloud service system 30. Moreover, a prescribed condition is determined to be satisfied, the multi-cloud chat service providing device 10 sends the inquiry message to an operator terminal 40A operated by operators, and receives a response message corresponding to the inquiry message from the operator terminal 40A. Then, the multi-cloud chat service providing device 10 responds to the user terminal 20 with the response message received either from the AI chat cloud service system 30 or the operator terminal 40A.SELECTED DRAWING: Figure 1
展开▼