Flight from OGG to SJC cancelled due to MX. Gate agent made a PA that all pax was to be rebooked on the nonstop to SFO, but as passengers were receiving their rebooking emails it showed connecting options that required a overnight in the respective connecting cities, caused a pretty big uproar as what they were told vs what they were seeing was not consistent. Station manager and additional customer service staff showed up to assist and I believe a majority of the pax were taken care off. There was cheers of joy when the plane pushed and took off from OGG

Specific to my itinerary, I phoned up reservations and was connected pretty quickly. Agent had options for a overnight in Seattle, but then a wild goose appeared and the following itinerary was confirmed: OGG-SFO-AUS-SJC. I chuckled when the agent finally ticketed the itinerary as I would've misconnected SFO-AUS due to late arrival from OGG-SFO. Once onboard the first flight, phoned up reservations again and explained the misconnect issue and the agent was able to push the SFO-AUS-SJC further out by 3 days. On top of this, received a $150 voucher.

A few takeaways from this experience:
1. The automated rebooking system will always try to get you to your original destination airport, despite a co-terminal that can be reached by shuttle bus/uber/lyft.
2. Always check your email and the AS app as what shows on there may be different than what the GA announced.
3. Time is of the essence to get rebooked by the agent from reservations. As a fellow traveler attempted to do a rebooking to the OGG-SFO flight, reservations was unable to assist as the departure time has been passed for the flight (despite the flight being delayed due to inbound aircraft and a occupied gate). GA's were able to resolve this, but that meant waiting in a long line with lots of disgruntled passengers (and diminishing available seats).