Select records in Random Order in SQL Server Query

Hi

I have Behcode Table in database

and I have Selectbtn Button in my page I want when I click on button in datalist it shows 2 data from Behcode Column in random that reserved column be "NO"

i.e

here these behcode's reserved column are "NO" 1111-1113-1114-1116-1117

Now I want when I click on button it shows 2 behcode  in datalist randomly between above behcode that reserved column is "NO"

How I can do it?

Best regards

Neda