['I have a coworker always disturbing me during working to talk to me about subject that I am not interesting in.', "Oh that's frustrating, have you told them how you felt?", 'No, I am too shy to do that. This coworker start endless conversation and keep talking and talking. It is delaying me in work.']
Oh that's too bad, I wonder if you could find a way to politely say something so you can focus.
I have a coworker always disturbing me during working to talk to me about subject that I am not interesting in.