Sally: Do you need any help?
Jo: No thanks, I am OK at the moment :-)
Sally: Good. If you need anything just let me know :-)
Jo: I am good at this stage, but I hate double checking things and I never see my own mistakes.
Sally: So you do need my help :-) No problem. When do you think you'll be done?
Jo: By 3pm?
Sally: Perfect, I will drop by.
Jo: Thank you, you're so nice :-)
Sally will drop by Jo's at 3pm to help her.