ויזה אמריקאית

[Cobb]

I just received an American Visa for a supposedly family trip with an annotation saying that it's a permit to visit with both parent names stated on the paper. Now due to whatever reasons my mom won't be able to join the trip, and I'll be flying with my dad. The question is will the border control do any problems at the entrance to the US because my mom isn't present but was mentioned in the annotation?
Will also mention I have plane tickets reserved for JFK -> Miami -> Toronto and back to Tel Aviv, with hotel reservations and everything that guarantees my return back to Israel after the scheduled time of the trip is over.
Does anyone have any experience or knowledge on this matter?

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אני חייל משוחרר בגלל זה כל הבעייתיות בנושא.