To book your Eva Air flight using miles, follow these steps:
Log in to your account and go to the top-right corner and click on ANA International and Partner Airline Flight Rewards. Choose your origin and destination, then your trip dates. After that, select the class you wish to book and travel in and then click search. You will be shown umpteen o flight now, choose your flight and follow the on-screen instructions. Your flight with Ana Airlines is now booked.