Excuse me, can you help me? (informal)

Excuse me, can you help me? (formal)

Yes, of course.

Thank you very much.

I have a question.

Do you know where it is? (formal)

Unfortunately not.

I don’t speak German.

I don't understand that.

What does that mean?

I beg your pardon?

Could you please repeat that? (formal)

Could you please speak more slowly? (formal)

Excuse me, do you speak English? (formal)

Excuse me, where is the information desk?