Mr.Smith：Hello,can I （talk,谈话） to Mr.White ,please
John：Sorry ,he's not at home .Who's （that,那） speaking
Mr.Smith：（This,这） is Mr.Smith speaking .Is （that,那） John
John：Yes ,Uncle Smith .My dad went out this morning .He didn't come back yet .Can I （take,捎带） a message
Mr.Smith：Sure.My plane will （arrive,到达） at 10：30 a.m tomorrow .Please write it （down,写下） and say it to your father .
John：Yes ,I'm writing it down now .
Mr.Smith：Thank you ,John .See you tomorrow .
John：You're （welcome,不用谢） .See you tomorrow .