I've heard good things about the Student Agency bus to Cesky Krumlov from Prague. My husband and I are planning to stay one night the first week of June. When I search the schedule on the website, though, it says "Connection not found. Probably, connections are not selling yet." That "probably" is what concerns me slightly. Is there any chance that means it's sold out? Do these buses sell out? Does anyone have experience with this who can advise about how far in advance one can purchase tickets? Thanks!