Echoes: Lucifer and the Dark Goddess by Nikki Broadwell

Feirin is lost in a city with no memories other than her first name. Life is not easy in this world where robots are more important than people, but at least she has a job. That is until the authorities discover that she has no I.D. Being thrown into the desert wilderness outside the WALL is not something she expected. And trying to survive it will take every ounce of will and strength she has.