Ayúdenme con una conversación con present perfect simple y continuous?

- Hi Dayanara * Hi John.

Have you been here long time ago?

- No, I've arrved 5 minutes ago.

* Great.

I have think you have been here at least an hour before.

I have drived all the morning, but traffic was so heavy.

- No problem Daya, Have you eat yet?

* No, not yet.

- Then come to that restaurant.

I have come here for six months, cooks well.

* No, better go to El Taquero.

My sister has worked there for two years, and says that are so good tacos.

- Is expensive?

* Not at all.

My sister says that from the begining, they have sold so cheap.

- Ok, its has been decided.

Let’s go eat something.