Sure, here's a dialogue about a scary dream in English:
Alice: Hey, John. You look really tired today. Did you not sleep well?
John: Hi, Alice. Yeah, I had a terrible night. I had this really scary dream that woke me up.
Alice: Oh no! What happened in the dream?
John: I dreamt that I was being chased by a shadowy figure through an old, abandoned house. No matter how fast I ran, it was always right behind me.
Alice: That sounds terrifying! Did you figure out who or what the shadowy figure was?
John: No, I never got a clear look. It was always just out of sight, but I could feel its presence. I woke up just as it was about to catch me.
Alice: Yikes! That must have been so unsettling. Do you think it means anything?
John: I'm not sure. Maybe it's just my mind's way of dealing with stress. I've been really busy with work and other stuff lately.
Alice: That makes sense. Sometimes our dreams reflect our worries. Try to take it easy today and hopefully, you'll sleep better tonight.