TechCrunch discusses Hailing a Waymo Driverless Taxi.

"Congrats! This car is all yours, with no one up front," the pop-up notification from the Waymo app reads. "This ride will be different. With no one else in the car, Waymo will do all the driving. Enjoy this free ride on us!"

It marks the beginning of a driverless ride-hailing service that is now being used by members of its early rider program and eventually the public.

Limitations

The company's driverless rides are currently free and only taking place in a geofenced area that includes parts of Chandler, Mesa and Tempe.
Even Waymo vehicles with safety drivers don't yet take riders to one of the most popular ride-hailing destinations: the airport.