google data studio - quote sheet

I have 3 quotation google sheets with customer data and price. I dont want my users to have access to the database.
I need a google data studio interface where the user enters the details and the quote appears. No need to send the mail etc. This is just to get the price , the user copies this price into our regular quote system.
There are 3 google sheets for which 3 google data studio needs to be built.