A dialogue about the communicative approach

We must acquire a language in order to communicate with others. There are .some ways to learn a language. Now, write a dialogue between Rana and Sana about communicative competence.

A dialogue between two friends about the communicative approach:

Rana : Hello, Sana. How are you? 

Sana : Fine and you?

Rana : I'm fine, too. But I can't understand the difference between mother tongue learning and second language learning.. 

Sana : Oh! learning mother tongue is a natural and subconscious process and second language learning means to learn language consciously. 

Rana : What does 'consciously' mean?

Sana : 'Consciously' means to know, the rules of grammar and of using the language correctly being aware of them.

Rana : Why do we learn second language?

Sana : We learn second language only for communication with the world people.

Rana : Thank you.

Sana : You are welcome.