<prompt> Human: So I recently got 2 job offers and accepted both because I need the money one part-time and one full-time, and I already completed my training and started working at my part-time job. I informed them before my training that I would be starting a full-time job soon and that I wasnt sure of the schedule yet, other than that it would be a regular 8-hour shift at the same time every day once I start. The hiring manager told me that was fine as long as I wouldnt have to be changing my availability every week, which I wont because its gonna be the same shift all the time its a factory job.But just today I told him Id be training on 2nd shift next week, and then Id be moving to one of two shifts permanently once Im done training at the factory. He gave me a form to fill out for changing availability and then said, Just know that Friday, Saturday and Sunday are non-negotiable, and walked off.I was already starting my shift at that point and didnt know what to say, because this was the first time I heard this. That means if I end up on second shift at the factory Ill probably have to quit at the grocery store, because theyd be trying to schedule me when Im gonna be at my other job on Friday and possibly Saturday, and I need a full-time position more than a part-time one.This puts me in an awkward position, because I wont even know what shift Ill be on till next week. If I get third shift itll probably be fine, but if its second shift I wouldnt be available for afternoons and evenings at the part-time job on any day other than Sunday.Im not really sure what to do, because I dont want to quit without notice, especially so soon after starting the job, but I feel like I wasnt given much of a choice, especially since I wasnt informed that weekends were non-negotiable until today. Even if I get third shift at the factory, based on what he said, Im not even sure theyll give me time off for the week of training. Does anyone have any advice on what might be the best way to handle this?  <response>: Dont do anything until you find out whether therell be a conflict.If there will be a conflict, let your grocery manager know, along with a I would like to continue working here; what can we do? pose. At that point, its his call about how non-negotiable it really is. 