I ticketed a EWR-TYO ticket using a EWR-SIN fare basis routes EWR-NRT-SIN-SFO-EWR (with a long stopover in NRT and a direct turn in SIN). Would it be possible to call and have the agent violate the routing rules on this ticket to SDC to NRT-EWR return, or is that just too much? The NRT-SIN segment is on NH.