If you're viewing more than one record at once
Then you should use a Totals Query.
Group By the CustomerID (or whatever identifies those two records as being in the same record set). Then select Max for the Date field, and you'll get the Max date for each Customer.
Be careful with Totals queries; extra fields can screw up your results, because they will each try to Group the results differently.
If you need to see more data that might be different in each of the records, link back to those fields in another query after you get the Max stuff sorted out.