For each distinct string value, find the last date and tell me the value in the third column

Objective

For each distrinct value, find the latest date in the second column and the corresponding text value in the third column.

I have three columns:  Guest, Host and Report Date.  For each guest, I need to find the corresponding host name for the latest date. Yet,  each guest has multiple hosts on different dates.  Here is an example:

The last row is the value I want to return.  The Guest list is about 20,000 long so I want to return for each distrinct guest, a host name and the latest report date.

Thank you,

Tim