Is it normal to be very frustrated while be trained for a job

Someone who is suppose to be training for 4 days keeps repeating the same thing over and over even after I showed her that I know what to do. Maybe she is lonely and just wants to talk about mindless things but I just started a new job everything is unfamiliar and I really don't want to seem unfriendly but I am overwhelmed and can't think when she gets talkative. I want space to focus on my new job until I feel confident enough in myself to be on my own but she is talkative and randomly asks me to return to the trailer and it wastes time and screws up my progress