Hello muadeeb1865!
What's available in QuickBooks right now is the manual way to create appointments. However, this is only offered to Android devices.
You can try finding other third-party apps that can schedule appointments when you record prepayments from your customers. Just go to the Apps menu in the left navigation bar and search for something like scheduler.
If you have other questions, please don't hesitate to go back to this thread. You can also check out our blogs to see the latest updates in QuickBooks.