What can I do for you ?
neutral
user
I'd like to buy some milk powder . What would you recommend ?
neutral
assistant
We have many kinds of different purpose . I wonder whom you are buying for ?
neutral
user
My son . He is two years old .
neutral
assistant
I see , sir . This one is very good .
neutral
user
Is it ?
neutral
assistant
You may rest assured . It sells well .
neutral
user
May I have a look at the introduction ?
neutral
assistant