So, to start off, my manager isn't very fond of me. And, I found out on Thursday after work there's a wedding I need to attend on Sunday. I told her today (Friday) I couldn't work and she said find someone to cover. I looked over the schedule, and the only people who can cover are people much higher in stature there, or people I can't get ahold of. So, that doesn't work very well. What should I do? I work again tomorrow(Saturday) and am debating on telling her, since she already doesn't like me. Or are there any other available options I haven't thought of?