She's such a cutie pie
I lost my dog for 2 or 3 months and never stopped looking for him. Finally a shelter saw one of my ads in ASPCA and call me. The owner should be doing there share. As long as you look through all shelters lost dogs and call around your doing enough. I had my whole city looking for my dog. You can also post on shelters websites found dog but be very careful when they claim her.
If owner never steps up then you have yourself a new baby girl