The context of the following conversation is Two people were showing off their dance moves. Tracy crowded around them so she could see.:
Tracy says I'm at the club watching some couple dance..
The friend responds Are they that good?.
Tracy responds Yeah they really are. I had to crowd in order to see them because so many people are watching..
The friend responds Wow it's just like Saturday Night Fever!.
Tracy responds Except that the music is a lot better!.
The friend responds True, true. Well if the guy turns out to be John Travolta call me back and I'll come right over..