Dog within my possession out of stay range?

Having trouble getting in contact with the owner, its like the she vanished off the face of the earth... well at least it seemed like it. Whenever she contacted me it was a last minute booking. The booking was completed successfully but an hour before scheduled pick-up I contacted the customer, as a reminder, and was informed minutes later that she missed her flight. Since then I've tried to reach her, after no sign of her I created a booking for the extended stay and allowed her to confirm or update me at her earliest convenience. it's going on a week and I was starting to believe the worst that could've happened to the owner until I decided to call her cell number yesterday morning. No answer; however, shortly I received a message stating "I'm on the phone... what's up" I'm as baffled as can be. She never responded but decide to leave me a review "She's perfect" but confirmed no booking nor informed me of her intentions. As of now she's been informed of Texas animal abandonment law, not sure what to do or if contacting rover support will help much considering I'd hate for the dog to sit in a shelter but wouldn't mind him being sent to a foster home. I just can't believe someone could be so irresponsible, neglectful and inconsiderate, the puppy is only 2 months old.