Maybe I'm missing something obvious but I can't get a routing to work on Co.com:

I'm starting in Cleveland, going to NYC then to CHI then back to NYC and back to CHI and finally back home to CLE.

Trying to book:

CLE - LGA
EWR - ORD
ORD - EWR
EWR - ORD
ORD - CLE

and CO.com is telling me:

"! We could not process your request. Please see the message below and make revisions.

! You have entered an invalid routing. Please modify your city pairs and try again or use the Round Trip search option."

Well, thanks! But it is not a Round Trip, the city pairs are all fine and I think it is not an invalid routing.

Am I missing something? Am I just out of luck? Does Continental seriously not thinking that people might go back and forth between the same cities in the same week?

I would like to get the EQMs for this by booking on .com but can't figure this out.

Any help is greatly appreciated.

Thanks!