Seriously, go into the reservation now and click modify. Select party size of 1. It will offer you the time you booked. Change it. Done… with no worries!
Yesterday I wanted to move a Yak & Yeti ressie to a later time, dining solo. Had to make it for 6 people to get the time I wanted! Immediately modified to 1. No problem.
Woodys will probably never offer tables for 1… Garden Grill and Ohana don’t that I’ve ever seen. So I book it for however many are needed to get an open slot, then immediately modify.
I don’t make up people or pretend others couldn’t make it… I modify it! Honestly, why worry when the system is more than happy to do this.