To focus on the most significant negative post-reservation booking experiences on OpenTable, we must first gather both qualitative and quantitative data to pinpoint these experiences. This information can be sourced from user feedback, customer support records, usability studies, or online reviews related to OpenTable. After compiling a list of the issues, I would utilize a framework such as RICE (Reach, Impact, Confidence, and Effort) or MoSCoW (Must, Should, Could, and Wouldn't it be nice) to prioritize potential solutions. These frameworks offer a systematic method for addressing the identified problems. For example, if numerous complaints highlight the difficulty in modifying reservations quickly, this suggests that the issue affects many users, and resolving it could lead to a significant positive outcome. If we are confident in our proposed solution and the effort required falls within our available resources, this becomes a priority issue. The essential aspect is not only to recognize the problems but also to grasp the significance of addressing them based on their impact on users and our ability to implement effective solutions. Ultimately, my objective as a PM would be to improve our users' experience while effectively utilizing our resources.