Clicking on the caregiver's card will bring you to their profile page. From here select the availability tab on the dashboard to be taken to the caregiver's availability page. Here you can view the caregiver's availability.
You can change their availability by clicking on the edit button at the top right. That will take you to the edit page. Make the necessary changes needed and click save at the top right corner to save the changes you have made. Or click Cancel to discard those changes.