a:Oh,look!what a beautiful dress!
b:Hmm...It looks really beautiful!would you like to try it on?
a:yeah!I'd like to do so.
After a moment...
b:wow!How beautiful you are!That dress looks very nice on you!
a:thank you!I like it,I want to buy the dress.
b:ok,you can pay for the dress over there,I will wait for you here.
a:That's all right.