Please tell me about penicillin.
user
Can I know why you want to know about penicillin?
assistant
My doctor prescribed it for my sore throat last week.
user
Let’s see, do you want to know the history, how it was discovered, who invented it, how it’s used, or how effective it is?
assistant
yes, please
user
The history of penicillin is a wonderful tale of scientific experimentation, lateral thinking, and moral courage.  It was discovered by Alexander Fleming in 1928 and refined by Howard Florey and Ernst Boris Chain in 1939.  It is generally used to treat bacterial infections like pneumonia and sore throats.  The drug kills the bacteria it’s used against, but it’s typically not 100% effective.  It’s recommended to take it as soon as possible after an infection develops, since it doesn’t work well after the bacteria has spread.
assistant
Please tell me about penicillin.
user
Can I know why you want to know about penicillin?
assistant
My doctor prescribed it for my sore throat last week.
user
Let’s see, do you want to know the history, how it was discovered, who invented it, how it’s used, or how effective it is?
assistant
yes, please
user
OK, please let me know if you’d like to hear about any of these things:
assistant
Please tell me about penicillin.