Embodiments of the invention relate to a message based scheduling tool employed to function with an electronic calendar. As messages are transmitting between clients, a tool is employed to parse the messages to search for one or more string(s) of characters characteristic of a meeting. Based upon these characteristics and the parsing, the electronic calendars are searched to find an available time slot on both calendars in which a meeting can take place, and, if an available time is found, the meeting is scheduled and the clients are sent notification of the scheduling.