silver cloak and insecure travis from the radio (Fallout 4)

1) I have 2 questions about the silver cloak and the leading travis from the diamond city radio. I did the silver cloak quests and my last quest there was to approach the hancock in the clothes of the silver cloak. I went up to him and he just said nothing about the silver cloak, he just said that he was kind of ready to walk with me as a partner. And the quest still hangs, I can't turn it over. Although the mark is on the hancock. But he doesn’t say anything to me about the raincoat. I’ve already tried again to take off and put on the raincoat, but nothing happens, he just says that this hancock is ready to walk with me.
2) And the second question I helped this Travis with radio diamond city. He and I freed this efim and Trevis told me like he became confident in himself, but when I turn on the oadio diamond city again, he stutters there again this is his own (eee nuu aaa), in general mutters. Is this how it should be?