We have already booked a trip using points from CLE - CHI, which is scheduled to arrive in Chicago at 845am. We also booked a trip using cash from CHI - SAS which is scheduled to depart at 145pm, on the same day. My question, is there a way to link these 2 trips together just in case the first leg runs late? When we first booked, we were only going to Chicago. Then a week later we decided to go on to San Antonio. Is there anything we can do now? Thanks in advance.