The Rist Hotel Conference Hall case likely refers to a specific instance or project related to the design, management, or use of a conference hall in the Rist Hotel. This could include details on the layout, facilities, event hosting, or any unique features of the hall. Without more specific information, it's difficult to provide a detailed response. If this is a case study or an example used in a discussion about hotel conference facilities, it would typically involve aspects such as venue design, technology integration, customer service, and the overall experience provided to event organizers and attendees.