Example of short English dialogue about asking for information
A: Excuse me, could tell me where the post office is?
B: Yes, go straight ahead around 200 meters. The post office is on the left.of the street.
A: Thank you
A: Excuse me.
B: Yes, can I help you?
A: How do I get to the train station from here?
B: Go ahead until the second traffic light then turn left around 1 km. It's over there.
The underlined sentences are the expression of asking for information.