Economy Plus seat assignment question
I was recently matched to 2P by United. For my upcoming reservation, I noticed all the Economy Plus sections are full. I also looked at the seat map in UAL website, I could not see any flight leaving on that day has open economy plus seats. Does this mean all the economy plus seats are booked solid for my flight or UA blocked these seats? If UA blocks Economy Plus section, how do I request Economy Plus seat assignment?
Thank you.