Stop asking for permission, start begging for forgiveness. You can't "book" a cab from your app? Fine, put a button to 'call' the cab. You can't "book" in ad

Stop asking for permission, start begging for forgiveness. You can't "book" a cab from your app? Fine, put a button to 'call' the cab. You can't "book" in advance, use the data from your app to guess the time someone should call in advance to have a cab for when they need it, then send them an alert to make that call, along with aforementioned link. You mention livery services for "booking" when a user needs something booked send them to a livery service. There are a million solutions to your problems, you just have to find them. Also, avoid jurisdictions with regulations contrary to your business model.