Ken

$3$ nights starting on a Friday; can't include $26$th

Fei

$7$ nights; must include $12$ th

Diana

$7$ nights; must be after Fei; can't start on a Wednesday

George

$1$ night; must be on a Monday

Question

A hotel has received four booking requests for their Executive Suite this month which need to be scheduled in$.$ There must be at least one night between each guest and there is already a booking from $17$ th $-18$ th$.$ On which days will Diana check in and out?

Calendar