I. Introduction
E-commerce in Indonesia surged to 77.766 trillion rupiah in 2018. This value increased by 151% over the previous year, when it stood at Rp 30,942 trillion [1]. According to the Republic of Indonesia's Minister of Trade, the contribution of E-Commerce could reach Rp. 1,908 trillion in 2030. The Online Travel sector in 2030 will contribute Rp. 575 trillion[2]. Special e-commerce that focuses on travel service transactions is called online travel agent (OTA). Orders from this business include hotels, flights, travel packages to car rentals[3]. Rapidly growing E-commerce engaged in this field is marked by the emergence of applications such as Traveloka, tiket.com,.