How to disable delivery on certain date at checkout page in WooCommerce?

I am using WooCommerce for my eCommerce website, I have added a custom checkout field “Delivery Date Picker” with the help of the official WooCommerce plugin “Checkout Field Editor” in my shipping field.

• Plugin Link: https://woocommerce.com/products/woocommerce-checkout-field-editor/

• My Website: https://www.millionroses.com.au/

• Checkout Field Date Picker Frontend Demo

• Checkout Field Date Picker Backend Demo

There is no option in the Checkout field editor plugin backend to disable delivery on a particular date or holiday.

Suppose due to holiday; I want to disable delivery on 25,26 December or 1 January, then how can I disable delivery date on these particular dates?

Thank you in advance!