let's say that i have a form to enter members subscriptions in a fitness center club.
the "Add member" form contain the member personal data (first name, last name,phone, ... etc) and the club plans and activities that he/she will subscribe.
now, what the best way to enter the member personal data , and in the same time search for an existing member that have the same first/last name,
in case that this member has already subscribed in this club before, and to prevent duplicate members data