On 11/04/2015 08:46, John Levine wrote: >> It seems that the reservation site is making some nights' availability >> contingent on the total length of stay... I'm not sure I understand the >> algorithm or the rationale. But the IAD is looking into it. > > Yeah. I couldn't do 18th to 25th, but it let me do 18-19 and 19-25 > all at the IETF rate. Whereas 17-25 worked like a charm. Maybe weekends are special in their algorithm. (Hey, this is the IETF, we're allowed to reverse engineer anything.) Brian