Dialogue: Apologize for a misunderstanding

Adri: Excuse me. Can I hace a word with you?
Eloi: Yes. Is there a problem?
Adri: I'm afraid so. Did you know that this is private property?
Eloi: No, I didn't.
Adri: Didnt' you see the sign?
Eloi: No, I'm afraid not.
Adri: Have you been here before to skateboard?
Eloi: No, I live out of town.
Adri: Well, if I were you, I'd look for a different place.
Eloi: OK. Sorry about that. I didn't realize.
Adri: That's OK. Remember for next time.

Key Phrases
Can I Have a word with you?
I'm afraid so / not.
If I were you, I'd...
Sorry about that.
I didn't realize