There are 50 million family caregivers caring for their loved ones in the United States. Caregivers experience significant stress and burnout, and need on-demand support with minimal resources investment. With the burgeoning development of artificial intelligence, conversational agents (chatbots) emerged as a solution for symptom self-management and self-care. Our research team developed Caring for Caregivers Online (COCO) - an AI-enhanced platform providing on-demand, empathetic, and tailored caregiving support. One of the key challenges in designing a chatbot is to ensure effective communication. To address this problem, our research team aims to determine the best practice in conveying health symptoms and solutions in a conversational agent to improve users' understanding of their health data and increase their trust in the technology. User testing and surveys are our main tools to address this question. After the initial session with the chatbot, users were asked to fill out a post-conversation survey. Based on users' ratings on their symptom intensity and solution effectiveness in the post-conversation survey, the chatbot generates personalized health recommendations. Next, we randomly assigned users to one of the two surveys that present the same recommendations in different ways—one with text, the other with a visualization. Users then provided ratings on how well they understood the visualization, their trust toward the chatbot, and some additional feedback. The results of the rating will be analyzed with an average score comparison between the two groups, and qualitative analysis will be employed to evaluate users' feedback. We expect the group presented with visualizations to give higher ratings in areas of both trust and data comprehension. Effective data visualizations inform caregivers of their health progress which motivates them to continue monitoring their health conditions and further practice proposed solutions. In addition, visualization increases caregivers' level of trust in chatbots and helps improve their chronic health conditions.