Hi @Vivian1468
This is difficult to diagnose unless we are able to see all your calendar availability settings. I saw you are not on instant book, so even if a guest tries to book these dates you want blocked, they have to send you an inquiry/request to book and can't automatically book those dates. In your situation, I would set your calendar availability to "unavailable by default." This will block all dates until you manually open them. All the other options are a "rolling calendar" which automatically opens dates depending on what you have set. If you set 3 months, then the system will automatically open another date up 3 months from today as each day passes:
![Joan2709_0-1719587749151.png Joan2709_0-1719587749151.png](https://community.withairbnb.com/t5/image/serverpage/image-id/113042i1894ED2980409387/image-size/medium/is-moderation-mode/true?v=v2&px=400)