Happy English for & for a while

2022/3/4 「Toward Thinking in English !」　　 https://www.wnyc.org/ for A: Are you here on business? B: No. I've come here for pleasure. A: There was a phone call after you left. B: Was it for me? A: Who is this package for? B: It's for you. A: Thank you for bringing me home. B: It was a pleasure. See you tomorrow on the train for Kyoto. For a while A: Mother, may I go over to Mary's house for a while? B: Certainly you may. But don't stay too long.