Help sorting Data

I have three columns - two of them have separate email lists and one of them has a list of dates.

The dates are customer order dates that match up to the list of emails in one column.

For simplicity's sake, let's label it like this:

Column A - Email list #1
Column B - Email list #2
Column C - Order dates that match Email list #2

Some of the emails in column A match the emails in column B, but not all of them. I need help sorting the data so that I can separate the matches from the non-matches, while keeping the Order Dates aligned with the email addresses in Email list #2. Can anyone help me?? Thanks!