Review the job description to determine what software they use because it will probably be listed in the required skills section. If it's a system you have not used or are familiar with, do your research.

"We recently replaced our existing CRM with Salesforce. The training was thorough and the implementation was well done. A couple of weeks after the training, I was invited to participate in a focus group that helped improve the efficiency of the system. I was thrilled to have the opportunity to make the system better."