The input items on the booking page can be customized by adding them to the basic items.
Image after additional settings (dotted line)
How to set up
Go to Edit Booking Page > Basic Settings > Reception Form,
Basic Settings > Reception Form.
Selecting "Add item" allows you to set a question item.
You can also set the required fields.
Items can be selected from descriptive, radio buttons, check boxes, pull-downs, etc.