Two-Column Layout: Calendar Next to Form
If you want to display the calendar next to the booking form, with the calendar on the left and the booking form fields on the right, follow these steps:

1. Go to WP Booking Calendar > Settings > Booking Form page.
2. Select the "Calendar next to form" template from the top toolbar.
3. Click the Reset button.
4. Click the Save Changes button.

After completing these steps, you will see the calendar next to the booking form fields on the front-end of your site.

Two-Column Layout for Booking Form Fields
If you want to display the calendar at the top and show the booking form in two columns, follow these steps:

1. Go to WP Booking Calendar > Settings > Booking Form page.
2. Select the "2 columns" template from the top toolbar.
3. Click the Reset button
4. Click the Save Changes button.

After completing these steps, you will see the calendar at the top and the booking form fields in two columns on the front-end of your site.