Is there a formula that will take data and automatically sort it as the dates change.

In this Summary Sheet:
in A1 I have a list of Names, B1 List of dates. This data is reference from another sheets data, which is where the changed are actually made. I wanted to see if there is a formula that will automatically sort the data as I key changes to certain peoples dates. These changes happen throughout the year, and not all at the same time. I know I can re-sort the data, but if there is a formula I can use, I'd like to try it.

Joe 11/5/17
Mike 5/3/17
Bob 2/1/17
Jen 9/2/17