Represent the dialog for retrieving similar scenarios Speaker2: hey you got a notice from the post office
Speaker1: oh yeah?
Speaker1: maybe my books are finally here
Speaker1: can u send me a pic? 
Speaker2: <file_photo>
Speaker1: thx!
Represent the dialog scenario for retrieval Speaker1 got a notice from the post office. Speaker2 sends him a picture of it.
Represent the dialog scenario for retrieval Speaker1 got an email with an attachment from Speaker2. 