Un caffè, per favore. Quanto costa? potrei avere un bicchiere d'acqua? come si arriva in via Dante?
A coffee please, how much is it? Can i have a glass of water? How can i arrive at Dante street?
Serve come traduzione o vorresti avere un argomento particolare su possibili frasi da dire al 'bar'?
While "How can I arrive at Dante Street" is correct, people don't speak like that. It's better to say "How do I get to Dante Street". If you say "How can I arrive" people will know you're a foreigner. If you want to blend in better, you say "How do I get to".