Jump or travel ???

[WeekendRef]

A situation that seems to come up a lot for me and I am never quite sure how to call it....
Player A is attempting a jumper, Player B reaches in cleanly and has a hand on top of the ball briefly but then lets go. Player A then returns to the ground w/ out releasing the ball . Is this a no call, a travel or a jump ball ????
I apologize if this is a basic question but I don't think I am calling it right . I always call a jump ball and I have yet to have anyone question me on it....except for myself .