Your Time Dining VS Set times

Sailing on Carnival Breeze with my husband next spring. During booking I selected Early Dining. This is our first cruise in a few years without our children so would prefer a table for 2 which I know we can get with YTD now what are the odds if I email the Maitre D prior to sailing he/she would accommodate instead of us visiting the MDR on embarkation day? Have you heard any success stories with the email option?