A computer-implemented method of coordinating a tour of a listed property is described herein. A first electronic multiple-listing service (MLS) database is accessed over a network. The first MLS database includes data describing the listed property. Multiple enumerated entries characterizing the availability for touring of the listed property are identified. A memory device on which are stored agent-data entries characterizing the availability for showing the listed property of multiple agents is accessed. At least one confirmed time period during which the listed property is available for touring and an agent is available to show the listed property is determined. A graphical user interface (GUI) is generated to a display device. The GUI presents user-selectable icons representing time periods during which the property is not unavailable for touring. At least one of the icons is labeled as being associated with a confirmed time period.