Ticket brokers operate out of offices and use the internet and phone call centers to conduct their business. They are different from scalpers since they offer a consumer-facing storefront to return to if there is any problem with their transaction. The majority of transactions that occur are via credit card over the phone or internet. Some brokers host their own websites and interact directly with customers. These brokers are able to offer additional services such as hotel accommodation and airfare to events. Other brokers partner with online ticket exchanges. These sites act as marketplaces that allow users to purchase tickets from a large network of brokers. Some brokers offer advice on the best way to buy tickets starting with the box office and working with a broker if tickets aren't available through the box office.