Originally Posted by
SJUAMMF
... But the two Shinagawa bound N'Ex are at 17:44 and 18:48.
And at 19:45 - N'Ex #48 - arriving Shinagawa at 21:02. That could connect to any of the 21:07, 21:17 or 21:27 Nozomis.
OP: No need to reserve tickets. Just have them purchase them at the same time they activate the Pass. They will have to pay extra to ride Nozomi.