@judimahoney I feel for you having to deal with this dysphagia. I know personally that it does require a lot of work to manage but you can only do so much. My mother had dysphagia at the end of her life. You are doing all that can be done to address this phase of your husband's dementia.
I think you were wise to cancel your reservations. I think that was needed to save your emotional strength for other things that will come up. I agree that it would have been so stressful for you to try to manage his eating difficulties in a strange place when that was not really needed to acknowledge the milestone.
What I have come to realize is that we don't have to repeat what we did to celebrate in the past. We can find new, meaningful ways to commemorate milestones in our lives. My husband and I celebrated our 45th anniversary in February with a special dinner at home then looking through all our picture scrapbooks to relive all the years we have had together. Just being together was enough for me. I will keep you and your husband in my prayers. We are on a really sad, frustrating, heartbreaking journey and you don't need to feel bad about venting on this page. We need to vent and ask for support as much as we can.