percakapan bahasa inggris expression to ask for permission

Rita:Rina can I borrow your dictionary?

Rina:Of course, but why did you borrow?

Rita:Later there is English lesson but I forgot to bring a dictionary.

Rina:Oh this I lend you a dictionary

Rita:thank you very good to me

Rina:thanks Rita

sorry if wrong and I'm very happy to help you, hopefully useful