By default, on booking form, you can only collect basic information about registrants: first name, last name, address...... If you want to add more fields to the form, you will have to create custom fields. Go to JB Tour -> Custom Fields, you will be able to manage and create new custom fields.
The extension support following custom fields type:
Customer can customize to apply to Passenger field, contact field and inquiry form field. Custom fields can be categorized by tour category