这段对话说的是什么事?怎么感觉句与句之间都没什么关系?

w：I have a 2 o’clock class at the university．Uncle．
两点钟的时候我有堂课要上,叔叔.
M：What time is it now?
现在几点.
W：It’s 1 o’clock．So I’ll have to leave in fifteen minutes．
现在一点了.所以我要在15分钟内离开.
M：Well,what can I do this afternoon?
好的,那我下午要做些什么呢?
W：Read,or have a sleep,whatever you want．
看书,或者睡一觉,你想做什么就做什么.
M：Do you want me to go with you?
想让我陪你一起去上课么?
W：Well,I think you’d better stay in the apartment and rest．The flight must have been very tiring．
不用了,我想你最好留在宿舍里休息一下,坐飞机你一定累了.
M：Right．I’1l stay here and catch up on my sleep．
好吧,我就留在这,补个觉吧.
W：I should be back at about 5 or 5:30．When are the Taylors supposed to pick us up for dinner?
我差不多5点或5点半左右回来.泰勒斯他们什么时候来接我们去吃晚餐?
M：Uh…About 6:30．We can watch that talk show while waiting for them．
大约6点半吧.我们可以边看那个谈话的节目边等他们.
W：Another question about last night,Uncle．
叔叔,关于昨天晚上,我还有个问题.
M：Uh—huh?
什么事?
W：Supposing you hadn’t met Mr Taylor,what would you have done?
假如昨天你没遇到泰勒斯先生,你该怎么办?
M：I guess I would have taken a taxi to your apartment．
我想,我会打辆出租,直接来你的宿舍.