Step 2 : Select your preferred flight and fare combination. As picture above, you can choose either one among the four colors that represents difference flight and fare combination.

Step 3 : Review the particulars information that you have entered before. The page would show the final amount you have to pay.

Step 4 : Choose the payment you preferred like credit card, online banking etc. If you have followed all instructions correctly, the purchasing process is done.

In short, this websites is considered as user friendly because it has provided clearly information to user. For example, it shows all the flight fare calculation, payment method that has been choosen, and relevant information like Infuenza A (H1N1) update and advisory. For my opinion, this websites has performed successfully as e-commerce site.