Ronald, you are certainly NOT being or causing any problem! You've nothing to apologize for. Sometimes, there is simply no trade to be made, and this may be one of those times.

My specific area of interest involves chips with flags on them, a rather esoteric area, for certain. I also have a tendency to pick up chips that I think are pretty. And of course, I will get chips I think I can use in trade, such as these Carnival Splendors. I do agree, it is nicer to keep these three as a set, but nothing is written in stone.