Нужно написать ответы по блокам? Если да, то:
Hello, my name is (здесь твое имя), i want to talk to Ann.
Ann isn't at home, may i take a message for her?
Please, inform Ann that i want to invite her to the rock concert, at the Apple street, 4 pm.
Is that all? Allright, i promise i'd tell this to Ann.
Okay, thank you. Goodbye.