Excel Macro to compare data in two sheets

Please see the attached file. I need you to create a Button in Sheet "Start" that compares data from Sheet1 and Sheet2 and then posts matching data in Sheet3. You can see data in Sheet1 and we are looking for the Name in Column G. Now we compare line 3 column G with the data in Sheet2 and see if the data in column F matches. We do this with every line from Sheet1 and go through ALL data in Sheet2. In the attached sample, line 10 of Sheet1 will produce a match as line 4, line 11 and line 18 of Sheet2 have the same info in Column F. Once a match is found I need all data from that line (in our example line 4, 11 and 18) copied to Sheet3. Every time I press the button this needs to happen, so before any copying is done, Sheet3 needs to be cleared of all entries and needs to be blank so we have a new set of data each time. This is an example, my final file will have thousands of lines, so it will need to do a lot of calculating. Ask me questions before you bid, so we both know we are on the same page. Post your price and do not start negotiating.