You can either adjust or take a break for a day or two. I wouldn’t stress about it, do what makes sense for you.
If you are super loving the routine stick with it, but don’t beat yourself up if you can’t, is all I mean. You got it.
ETA: personally for me, when I travel I need to have my specific creature comforts, so I eat a bagel at every airport. It’s just what I do. I always have to remind myself it’s ok, so I’m reminding you too.
I would stick to your regular schedule if you can. But be flexible, it’s vacation!
For example, I do OMAD (dinner). I recently took a vacation and 90% of the time I did OMAD. One day we went out to breakfast, I certainly wasn’t going to miss out! I enjoyed and had a light dinner. A couple days I drank calories, had dinner, then dessert over 5 ish hours, instead of my normal 30 ish mins. On the long drive home and the day after, I fasted. I felt bloated and did a 48 h fast.
My point is, yes, try to stay on schedule. BUT there are times in life that you can’t get back. So enjoy your vacation and be flexible if needed and don’t beat yourself up.