bad luck

Once I had a reservation of a lesson every day for one week, 6 months in advance!! He had seemed to be looking forward to his visit to Japan very much. But as soon as he arrived in Kyoto, he caught a bad flu, had high fever, stayed at a hotel for a whole week and went back home, of course without lessons. What a pity! Even you have made a very good plan with a lot of time, you never know what happens.