(Seattle, WA)  --  A new study shows African Americans wait longer for Lyft and Uber trips and are more likely to have drivers cancel their trips.  Authors of the study, conducted by the University of Washington and MIT, wrote that the cancellation rate for African American-sounding names was more than twice as frequent as that for white-sounding names.  The study was conducted in Seattle and Boston.  Spokespeople for Uber and Lyft say the ride-share companies don't tolerate any form of discrimination.