Lex,
I believe what he is trying to say is that he wants to fly the following itinerary:
EWR-SAN
LAX-ATL
ATL-EWR
I presume that all of these are on separate days, i.e., that there are three distinct legs on the trip.
If he prices it now, in order to get nonstop flights (one of his goals), he has to buy EWR-SAN on CO, then LAX-ATL on DL, then ATL-EWR on either CO or DL. What he is asking, I believe, is whether there is a way to buy a codeshare flight such that the entire trip is on one airline, which ostensibly should cut the price (although with the open jaw involved I doubt that it would).
In other words, if codesharing was in place amongst the members of this new alliance (which it is not yet), he could buy:
EWR-SAN (CO flight number, CO-operated)
LAX-ATL (CO flight number, DL-operated)
ATL-EWR (CO flight number, either DL- or CO-operated)
The simple answer to his question currently is that there is no codesharing yet, so he can't do it. And given the open jaw, even with codesharing, I doubt that he'd ever be able to do it and save any money because the open jaw makes this three one-way legs rather than a circle trip.
Edited to correct spelling.
[This message has been edited by Robert Leach (edited 06-21-2003).]