To add your booking form to a page, you can use either the included Gutenberg block or shortcode.
For the Gutenberg block, on the page edit screen, just click the + button to add a new block, search for booking form and add the Booking Form block to the page.
You can also add the booking form to your page using the following shortcode:
To use this shortcode on the page edit screen, just click the + button and add a new shortcode block to the page. Then write or paste in the above shortcode.
You can view more information and the available shortcode attributes here.