Timetable

"What do you mean you don't go into town?"
The driver sighed.
"I can't say it any clearer. This bus doesn't go into town."
"Why not?"
"It's the new route."
"But this is the 57, isn't it?"
"It's the 57A."
"What's the difference?"
"I don't go into town."
Another bus pulled around them as the conversation continued.
"Which bus does go into town then?"
The driver pointed at the bus which had just passed them.