I applied for this job online, the next day I received an email to schedule for phone interview. I submitted my 2-days availability on the "schedule app" as well as re-confirmed with the HR person. On the 1st day of interview, there was nobody called during the schedule time. The same as the 2nd day. So I sent email to HR to re-schedule, and tried to call the office. Nobody answered the phone. The HR person was not even reply my email until now. It is reasonable and acceptable to consider someone as a better candidate, even just right before my interview. I understand. However, it is unprofessional to cancel an interview without notice. It is unprofessional not respond email or phone calls.