waiter: May I help you ?
daughter : Yes ,I want a new dress.
waiter : What about this one ?
daughter : It's beautiful .I like it very much .mum ,may I buy this dress ?
mum: How much is it ?
waiter : Ninety yuan .
mum: it's too expensive .
daughter : Mum, please ,please .I like it very much .
mum: You are a good girl in school . You work hard at school .I will take it for you .
daughter : Thank you , mum .
mum: Here is the money.
waiter : Thank you .Welcome again .