We were just there a month ago and the GM was John Schafer. The format for contacting people at Hyatt is first initial last
[email protected], so it would be
[email protected]
Presumably they haven't had a management change in the last month. I believe Mr. Bucholtz is/was GM at the Grand Hyatt Denver.
The Hyatt Regency is a great hotel. A perfect location, a gorgeous, contemporary hotel, and terrific staff. I'm sure you're really going to enjoy your stay.