3. The computer-readable recording medium according to claim 2 , further causing the computer to perform: acquiring the customer level of the customer to whom the operator is responding; acquiring. the case identification information on the case data which is referred to with respect to the inquiry; acquiring the best auxiliary data including acquired customer level and acquired case identification information; and generating support data for supporting the operator based on the best auxiliary data and the case data.
3. The computer-readable recording medium according to claim 2 , further causing the computer to perform: acquiring the customer level of the customer to whom the operator is responding; acquiring. the case identification information on the case data which is referred to with respect to the inquiry; acquiring the best auxiliary data including acquired customer level and acquired case identification information; and generating support data for supporting the operator based on the best auxiliary data and the case data. 6. The computer-readable recording medium according to claim 3 , wherein the acquiring the customer level includes obtaining the customer level based on the response data.