Would like help with data valadiation drop down box based on user entry and Vlookup formul

Hello Everyone,

I have attached a example sheet showing what I am trying to do. Basically I want to do the following

My customer enters their name on the search sheet.

Then a Vlookup formula, that looks for customer entered name, and all builds done by the customer (from table in pilot status), and displays all the builds in a drop down box (data validation) for customer to choose build they are inquiring about. There are duplicate customer name entries (but different builds for that customer).

Based on build chosen by the customer from the drop down box the following will show
If build is started it will show the date the build was started (otherwise display Not Started)
If build is completed it will show the date the build was completed (otherwise display Not Finished)

Thank you in advance for the help!