The second reason he may tell you no is that you think he has the juice to get it done, but he knows that he does not have the power to do it and he is not going to admit that in that conversation with you.
La segunda razón por la que puede decir que no es que Uds. piensan que tiene influencia para conseguirlo, pero él sabe que no tiene poder para hacerlo y no va admitirlo delante de Uds.