Как перевести на английский язык я сегодня опоздаю на ужин я не приду на лекцию

I shall be late for dinner today.

I shall not come to the lecture.

Ann: Good morning Kate. It is me Ann. How are you?

Kate: Good morning, Ann. I am fine and you? I think, you are in a hurry, do not you?

Ann: I am fine thank you. Yes, you are right. I am in a big hurry. 

Kate: I see. Why? What happened?

Ann: Please, tell our lecturer that I shall not come to the lecture. I must work hard today.

Kate: OK, I shall tell.

Ann: And Kate, one more thing please. Tell my mother that I shall be late for dinner today.

Kate: OK, I shall tell her.

Ann: Thank you dear.