Below is a conversation between two characters, but it has missing punctuation, unclear speech, and no emotion.
Your task is to rewrite the dialogue correctly, using proper punctuation and making the characters sound more 
natural and expressive. 

“The Lost Project”
 Characters:
• Sara – A responsible student
• Riya – Sara's friend, sometimes careless

riya said sara where is our science project folder 
you were supposed to keep it safe yesterday remember replied sara
i thought you put it in your bag said riya looking worried
no i gave it to you after class you even nodded said sara
oh no i think i left it on the bus said riya
on the bus shouted sara riya we worked on it for a whole week
im really sorry said riya what do we do now

lets go to the bus stand maybe it’s still there said sara
okay ill come with you said riya hopefully we find it