What happened when OP:
1. Listened to the readback or confirming email from the TA?
2. Checked the itinerary forwarded by TA?
3. Look at BP whenever recd?
4. Checked the departures board for a gate?
5. Looked at the gate destination?
6. Heard the GA boarding announcement?
7. Heard the FA and ground crew repeated onboard announcements about being on "Flight XXX headed to YYY"?