Hello , Anna . Come in and sit down .
neutral
user
Hello , doctor .
neutral
assistant
What's the matter ?
neutral
user
I've got a backache .
neutral
assistant
Do you often suffer from backache ?
neutral
user
No , I don't . I've never had a bad one before .
neutral
assistant
When did it start ?
neutral
user
About four days ago .
neutral
assistant
Well , go home and rest in bed for two days , then you'll feel better .
neutral
user
Can you give me some medicine ? It's very painful .
neutral
assistant