Father is upset that I won't be there for his birthday

My mother wants me to fly out to New Jersey with her to see my aunt, grandmother, grandfather, and my 2 cousins (they will all be staying together). The trip is from February 12th-14th. My father’s birthday is on February 13th. 2 weeks ago, I told him that I was considering going to New Jersey with my mother, but I don’t know if I told him the exact date. Yesterday, before my mother booked the flight, we were talking on the phone and I gave my father the phone and he discussed it with her, and then my mother booked the flight (I let my mother explain the situation instead of me doing it myself).

This morning, my father called me up and he said that he was upset that I was going on the trip while it was his birthday. He said I am an adult now and I can choose to do what I want, but he is upset that I didn’t tell him about it beforehand. I told him that I mentioned it 2 weeks ago to him, but he said I didn’t tell him when. I also told him that I let my mother speak to him, but I think he was upset that I was not the one that discussed it with him. I told him I can cancel my flight, but he said I can do whatever I want since I’m an adult, and he isn’t going to make me do anything.

My question is, what can I do to remedy the situation? Should I cancel the flight? Anything else? I would greatly appreciate some advice.

Thanks.

How ya doing, buddy?