To make a booking we need to know the customers' details. In order to minimise redundant data
on the database we force a search for an existing customer before entering a new customer's
details. The search is for either surname, code or best of all postcode. A list of all people
matching the search criteria is displayed allowing you to choose the correct person. If the
customer does not already exist on the system, then a screen is used to input their name and
contact details. The address may be selected using the postcode.