What are they talking about?

M: Hello, Kate.
W: Hi, Mike. Did you have a good summer holiday?
M: Sure. I went for my holiday on my uncle’s farm.
W: Really? What interesting things did you do there?
M: I helped get in some rice, take care of the fruit garden and drive the tractor.
W: Drive a tractor?
M: Yes. It was easy to learn. Did you go away for your holiday, Kate?
W: Oh, no. I just stayed at home. My mother has been in hospital. I had to look after her and help do some cooking and washing at home.
M: I’m sorry. Oh, it’s late. I must he off now.