Karnataka State Road Transport Corporation [KSRTC] — Rude conductor

I have boarded the Mahadeshwara hill bus at 6.15am. conductor issued the tickets also. But at 7.20am she told me to sit other seat as that was reserved.I told her ok but I want window seat as my kid wants window seat, But that lady driver is very rude attitude you must sit and adjust. Is this the way to treat passengers?? Why should I come early to catch the bus she could have informed me early this was not happened. The way of talking with passengers is worst.