OK, well it would be easier if you would post the dB - don't need the actual client info. Making a copy of the dB, deleting the data, adding a few records for testing purposes is enough. Use names like Herman Munster, Clark Kent, Bruce Wayne, Fred Flintstone.
But we can play 100 questions....
Her we go.........
1) How do you identify a contact? Just using First and Last name? What happens if you have 8 John Smiths as clients? How do/would you pick the correct John Smith?
2) Do you want to have a button to do the search? Or search after the First and Last names are entered?