First,Re： 别的部门老板很欢迎我去。您觉得这种人会刁难我不让我转吗
Don't think too much before you even try it out. Things could change after this dispute. The other department might not welcome you any more. Just be prepared for the worst scenario.
Secondly, if 如果他坚决不让我转，烦提个建议行吗？
My sense, there is something wrong right at the begining. There are many ways to deal with this kind of issue, but you have made many bad judgements.It is your boss's call to let the person go into the system, you don't need to explain, you just need to follow.
