It is possible to modify your booking form by adding and removing fields. To do this, you will need
to edit the code in Booking.php + Booking.processing.php. Booking.php is the form itself,
and Booking.processing.php is the file which processes form submissions as well as sends
emails to the administrator and the customer, and inserts records into database.
At the moment, we do not provide detailed guide on this, however, if you have general PHP knowledge - you should be able to do it, with a little help from a basic description located on the link below.