Hi due to the pandemic and my supervisor not using skype or zoom etc, I ended up writing my master's dissertation by myself. I had 2 meetings with him and we exchanged about 6-7 emails in total. I'd like to put him in the acknowledgements and thank him for his help and support. However, it really sounds fake because I just didn't reach out for much help and support. In any case, when I reached out, he was very helpful and I'm very grateful for this.
I'm just a bit worried how it sounds thanking for something that didn't happen, but I could be overthinking this. I've also thanked a couple of other lecturers because I really enjoyed their courses and they helped me learn a lot.
How do I acknowledge my supervisor in this situation?