Learn the following dialog then answer the questions based on it

Azizah: Hi Sulthan, how are you doing? You look so tired.

Sulthan: Really?

Azizah: Yeah, what's wrong with you?

Sulthan: I've been looking for my English notebook everywhere. But, I can't find it.

Azizah: Don't worry, I will lend you my notebook so can rewrite it.

Sulthan: You made my day, Azizah. It's really kind of you.

Answer the following questions.

What does Sulthan say to Azizah to thank her?