u/Commercial-End-5462

I’ve recently booked Thailand with my partner through instalments which means I haven’t received my airline ticket yet, I know I’ll receive this once the instalments are paid off however I’m wondering if they’ll seat me and my partner next to each other? I’m slightly worried that I’ll get the tickets too late and be unable to pay for tickets next to each other if that’s the case, can anyone confirm the seats will be next to each other?