The Sheraton Chicago Hotel & Towers has appointed Mark D. Tunney director of sales and marketing. Before joining the Sheraton Chicago, Tunney was vice president of sales for SeminarSource.com, headquartered in San Diego, Calif.
Mark Frisone has been named national account executive in the Marriott National Accounts office in Westport, Conn. He will handle the Northeast corporate market, including insurance and financial services accounts. He had been senior sales manager at Westfi