Please make a dialogue

You: hello, A (your friends). sorry I am late because my grandmother is sick.
A: it` okay, by the way why you call me?
you: I want to telling something.
A: about what ??
you: about my brother. my brother is started to smoke. I don`t know what I do now. can you give me your opinion?
A: I think you must to stop him! because it can destroy lives. I see many people experiencing the incident.
you: I think I should immediately notify my brother about it.
A: of course, now go and telling your brother about it
you: okay, thank you so much about your opinion. and bye bye
A: bye.