The BOP extended service product is an open service platform developed to provide certain capital support for the air ticket agent to purchase air ticket to meet the development requirement of BOP and other Dovepay business based on the existing business of Dovepay. This platform can demonstrate all kinds of credit products provided by the banks and other cooperative agencies for the users to choose. The user can products in different payment days, amount of money and rate according to the own operation features flexibly. Thus, it can effectively ease the own pressure of capital turnover.