Where does the conversation probably take place?

W: Now Mr. Snow, what can you remember about the attack?
M: Well, 1 was working late yesterday evening and just when 1 was about to leave .
W: Sorry, what time did you leave your office?
M: About a quarter to eleven.
W: Are you sure about the exact time?
M: Oh, yes. I looked at my watch.
W: What did you do then?
M: Well, I locked the door, and I was walking to my car when somebody hit me on the head.
W: Did you see the attacker?
M: No, he was wearing a stocking; over his head. I lost much blood by the heavy blow and passed out. That’ s everything I can remember right now.
W: Tell me, Mr. Snow, how did you come to the hospital?
M: Well, I’ m not so sure. Someone walking by called the ambulance, I guess!