You Can Now Order Ubers (And Soon Lyfts) In Facebook Messenger To Prove You’re On Your Way – TechCrunch
Facebook Messenger now lets you order "Transportation", starting with Uber and with more services on the way. Facebook's twist is that ordering a car via Messenger alerts those in your chat thread that you have indeed grabbed a ride...instead of you lying that you have while still in your pajamas.
16 Dec 2015 ... Either of those actions will open Uber's Request Ride option where you can add your pick up location, destination, and car type.