Based on the context and the answer, generate a question. 

Context: We had a second breakfast at McDonald 's , where I had a green tea and Oreo McFlurry . It was interesting , to say the least . To fill our time , we went to Harajuku , a normal destination for me whenever I ' m town . I did some shopping and somehow managed to get a morning discount !

Answer:

They had booked their flight to Japan .



What may have happened before they went on their trip ?