To cancel a reservation, call the company that has the reservation and request a cancellation. The exact process varies depending on the company, and companies typically only allow cancellations within a specific time frame.
Alternatively, visit the company's website and look up your reservation using your name, credit card number or a confirmation number. Hyatt and Best Western are hotels that allow cancellations both online and over the phone, although these options aren't always available.
Contacting the specific hotel directly can be a more effective cancellation method than contacting the company's reservation offices, as each hotel typically processes its own billing.