Travelling Solo in SL and...

Travelling Solo in 09519 and one man travelling with his family, occupied my seat and asked me that "Can you Transfer seats?" As his family was in this sequence UB,MB, and backside SU and I'm in SL. I respectfully Declined his offer. However this is Evening and he is seating on my site. Is there any rule for daylight that you need to seat and can't sleep? Doing Journey in 3AC

Travelling Solo in 09519 and one man travelling with his family, occupied my seat and asked me that "Can you Transfer seats?" As his family was in this sequence UB,MB, and backside SU and I'm in SL. I respectfully Declined his offer. However this is Evening and he is seating on my site. Is there any rule for daylight that you need to seat and can't sleep? Doing Journey in 3AC