Two ways: roster and player profile.
Roster:
Go into the roster by clicking the Admin Panel's “people” icon.
Search for the member by typing their name into the search bar.
Click on the member from the search results.
Once in the member profile, click on the Activity tab toward the bottom left of the screen. 
This will give you all the member rounds and information on whom they played with.
Player Profile:
When opening a booking, you can click on the member's photo or initials to be brought to their profile to see the same activity history.