[speaker001:] Excuse me.Have you got any books on genetic engineering? I've looked for them everywhere, but I can't find any.
[speaker002:] I'm not sure if we've got any now.Books of that kind are on this shelf.Well, I'm afraid we've sold out.
[speaker001:] What a pity! I should have come earlier.
[speaker002:] Come some time next week if you like. I think we'll have got some by them.
[speaker001:] Ok, I will.