@James1671 Normally guest payments are released 24 hours after the guests check in, which is calculated as your listed check-in time (In fact, it doesn't matter whether the guest even arrives, and there is no "reporting guests' arrival" to Airbnb). It can take a few more days after that to see the funds in your bank account, paypal, or whatever payout method you've chosen.
But for new hosts, your first payout will be delayed up to 30 days. After that, you should see a payout release as normal, 24 hours after check-in time. Look under "Transaction history" in your hosting account to see the status of your payouts.