When contacted for a first round interview, I was given the option of one date/time. Luckily, that time fit my schedule. For the second interview, I was again only given one option of date/time, while also receiving a case study assignment that was to be completed over the weekend and returned on a Monday. I replied to the recruiter's email to ask for an alternative date/time, as I was out of town on President's Day, the only time offered for me to attend the interview. I never heard back regarding me request for an alternate appointment time.