YOU SAID:
Hello I want a piece of pizza
INTO JAPANESE
こんにちは私はピザが欲しいです
BACK INTO ENGLISH
Hello, I want a pizza
INTO JAPANESE
こんにちは、ピザが欲しいです
BACK INTO ENGLISH
Hello, I want pizza
INTO JAPANESE
こんにちは、ピザが欲しいです
BACK INTO ENGLISH
Hello, I want pizza
That didn't even make that much sense in English.