I checked this on our travel agency computer and found the following -

‡$LR1 CHI FAY/*US
RXAUWA6Y 54.00 108.00 US ROUTE:0703
VALID SINGLE CONNECT CITIES FROM: CHI TO FAY
BOS CLT NYC PHL PIT WAS

ADDITIONAL RESTRICTIONS ON ROUTING:
TRAVEL MUST NOT BE NONSTOP.

There is obviously a conflict with the two sets of restrictions, and furthermore, there are no nonstop flights between Chicago and Fayetteville. So there is no way to book this fare.


However, there is a similar fare available as a UA codeshare -

‡$LR2 CHI FAY/*UA
TOA14N6A 69.00 138.00 UA ROUTE:0042
VALID SINGLE CONNECT CITIES FROM: CHI TO FAY
ABE BOS BUF BWI CAK CLE CLT CMH CRW DAY DTT EWR
HAR IND NYC ORF PHL PIT RDU RIC ROA ROC SDF WAS

ADDITIONAL RESTRICTIONS ON ROUTING:
NONE


You should be able to book this one, as the nonstop restriction is missing from the UA fare.


There are some additional restrictions for booking the UA fare -

PERMITTED TUE/WED/SAT.

BLACKOUT DATES
IF TRAVEL OCCURS 200AM TO 759PM DAILY
TRAVEL IS NOT PERMITTED ON 30NOV 08 OR ON 01DEC 08 OR ON
27DEC 08 OR ON 03JAN 09 OR 11FEB 09 THROUGH 31DEC 10.