This is my house in England

Janet: This is our garden in England.
marry: It’s very lovely.
Janet: Yes, there are many kinds of flowers. They are really beautiful and lovely.
Ben: This is my bedroom.
Janet: Yes. It’s very messy. 
Jim: Yes, but it's very comfotable. There is a big bed in the room, and a end tabel beside it. Oh, there is a big book shelf too, you have so many books. What’s that?
Ben: It’s a air conditioner. It make my room cool.
Jim: Is there a computer in your room, Ben?
Ben: No, the computer is in the study.
Jim: Is the study upstairs?
Ben: No, it dowstairs.
Jim: Are there any cookies in your fridge? I’m a little hungery.
Marry:Oh, Jim.