A:Can I halp you?
I:yes.I want a pair of shoes.
A:What color do you like?
I:I like black.
A:How about this pair?
I:How much is the pair?
A:they'er 60 dollars.
I:It is a bit expensive.
A:How about this pair, only 34 dollars.
I:I bought this pair.
A:Here you are.
I:Thank you.
A:Looking forward to your next visit.