急求关于shopping的四人对话!

S:hello,sir,what can i do for u? C1: emm...we are looking for a lap-top which has a 4GB Memory Stick. S:Sure there is.what brand would u perfer? C2:it doesnt matter,but it has to be good quality. S:well,how about this one here?its the lastest sony appliance lap-top. C2：its ok for me，i like black.i think im going to get this beautiful laptop here. C1:let me have a look,ah...the configurations are not too bad,but i dont like the colour black.is there any chance that i can get a dark-blue one? S:i'm not sure .u have to ask the manager .he is right there,standing beside the shelf next to the front gate. C1:excuse me,I’m wondering do u have a dark-blue one of that sony laptop there？ M:sorry,im afarid there is no blue one of this model. C1:thats okay,then what colour do u got? M:emm...red,white,and green. C1:can u show me a red one? M:plz ask that satff u just talked,he will help u. S. give me one second......here you go. C1:wooooow,fantastic!its soooo lovely,i‘llt take that！whats the damage？ S：...its 798 EURO. C2:why its 798?the black one is only 750。 S：because its 20 year red Commemorative Edition ，its 48 euro extra. M::u r lucky，we have special offer these days，everyone who consumed over 500 euro，can get a twenty percent price off. C：great！thx a million 改了一下