CITS - GBT mobile App is a one-stop online booking tool for business travel, 
providing enterprises with a series of services including approval, reservation, change and refund of domestic and international air ticket, hotels, cars and train tickets, as well as trip management. It supports flexible customization of approval, real-time alerts on updated flights changes, online train seat selection, to-do reminders etc., and is committed to make  business travel more efficient and convenient.