where the driver and passenger both call a computer dispatched phone number listens for a tone then enters each other 39 s contact number both calls are then connected together by 3 way calling so they can coordinate the exact pick up location in this case neither party is given the direct phone number to the other party upon successful transmission of contact information the billing application 414 of fig4 will automatically debit the passenger 39 s account and credit the driver 39 s account balance 422 of fig4 message sorting application 411 also has the function of receiving subscriber complaints and recording these complaints into the subscriber profile 421 and automatically sending a warning message to the offending subscriber when complaint status crosses a predetermined threshold the offending subscriber is moved to u201c inactive u201d status where future matches will not be made as described above it will be seen that ride matching systems according to various embodiments of the present invention may increase the usefulness of carpool scheduling by making such systems more flexible through automatic identification of candidate passengers based on the start location and desired travel direction such automated matching of candidate passengers may encourage the use of this system by forming a carpool in such a quick manner the flowcharts and examples for fig2.