The video explains the how uber clone taxi app working step by step with user & driver application.
See the communication of user and driver app in the video. You can see in that, user book new ride with pick up & source location and driver get a new request for that ride. After driver accepts the trip he/she manage the ride like arrived, start a ride and complete ride.
More Details - https://whitelabelfox.com/uber-clone-app/