Like I said, I'm not saying that you're lying. I'd just like to hear it myself is all. I'm a natural doubting Thomas so I have to see it to believe it.
Which caravaneers are you trying to get the repeat dialogue from by the way? I've tried the ones I find on the road and then the people at Bunker Hill. But I haven't heard anyone mention the NCR yet.
Once I find it I'll try and get a screenshot for proof.