A:Good morning,Madam.Can I help you?
B:I want to （buy） a new dress.
A:（What)（color） do you want?
B:I want a blue (one).
A:What (about) this one?
B:Can I (try) it?
A:Sure.
B:(How) (much) is it?
A:It is one hundred and twenty yuan.
B:Oh,that is (expensive)!
A:Yes,but it is very nice.Do you (want) it?
B:OK,I will (buy) it.(Here) is the money.
A:Thank you.
希望帮到了你,