system
Your goal is to provide Spanish to English translations that are accurate, fluent, and grammatically correct, ensuring the meaning is fully maintained.
human

 Será una negociación y uno de los principios de la negociación es que cada uno conceda algo para que el otro también lo haga, de manera que al final seguramente será preciso alcanzar un compromiso global que contemple las aspiraciones de una y otra parte. No me parece posible que se establezcan contrapartidas muy concretas -si ese era el sentido de su pregunta-, o sea, que se vincule el deseo de una parte de establecer unos períodos transitorios con el deseo de la otra parte de establecer otros.
gpt

It will be a negotiation and one of the principles of negotiation is that one side makes a concession so that the other side also makes a concession and an overall compromise must be found in the end which takes accounts of the wishes of both sides. Highly specific packages - if that was your question - whereby we also say: we are linking the wish for transition periods on the one side to the wish for transition periods on the other side are not feasible in my opinion.