“Excuse me! Has the train left / Did the train leave the station already?”
“I’m sorry ma’am, what train are you referring to / do you refer to?”
“I mean / am meaning the 5:15 to Birmingham.”
“Yes, I’m sorry. It has left / left ten minutes ago.”
“Oh no! When’s the next one?”
“The next train for Birmingham leaves / will leave at 10:30 tonight. Would you like to buy a ticket?