assistant:hello ! can i help you?
"name": yes, please .I would like to buy sneakers.
assistant: what colour would you like ?
"name":Brown if possible.
assistant:yes , we've got brown sneakers.what is your size?
"name": size 40,please.
assistant : here they're. you can try them on.
(after a moment)
assistant : how do you they feel?
"name": they feel fine . how much are they ?
assistant:50.
"name":Right.i think i'll take them .Here's the money
assistant : thank you sir for visiting us good bye.
"name":good bye.
