My dog isn't a service dog, he's just a friend, but sometimes I take the street car in to the office and my dog (Elvis) joins me. If it rains, or if i'm leaving in rush hour (when dogs are not allowed on transit here in Toronto), i take an uber or taxi home. Often Ubers reject me due to the dog, but i have no way of letting them know in advance other than by calling as soon as they accept (which i always do, but even when they say "yeah no worries" they often still reject after the call).

I just want to be able to mark that I have a dog with me, and for the uber drivers to know this when they accept. Surprising them with an animal is to no ones advantage.

We're talking about a Beagle, completely silent, normally just sleeps in cars, 22lbs, sits on my lap.