Cоставить диалог краткий по сначало 1)незнакомых людей потом2) одноклассников сегодня сейчас

Good evening!
good evening!
I'd like to go to your lectures, because it is so interesting! Could I?
Oh, yes of course, but you should be written on registration.
Yes, I'll do it. good bye.
goodbye
2
hello!
hi, fellow! how are you?
great! do you give me your book? I forgot my maths
ok!