Talk to him while he's still with you...
I hear you sister
I am surprised that it doesn't also accept the perhaps overly formal but definitely correct
لا احب ان اتكلم مع ابي
Report it next time you get this question by clicking report next to the flag when you put your answer in, and say "My answer should be correct"
Thanks! Did do, just was curious what others' thoughts would be/I wanted to document it in case someone else was marked wrong for it and was questioning if it was right.
الاتكلم is accepted at least.
Your sentence is correct
La can mean both 'No' and 'Not' right?
It depends on the sentence, it sometimes means "don't"... So I'd say, it's used to express negativity.