premise: I met this girl one month ago , we went out some times , and shared quite good time together . I called her last Saturday , she asked me to call her the next day for a date . But I called her that day , she did not reply , send message said she must study ca nt hang out . But it was Sunday , I do nt think she would have to study . What may be her reason for cancelling the date ?
hypothesis: She may have been busy with school work .