Provide the theme summaries for the following conversation: 

Laura: Mom had asked me to go grocery shopping before she left for work this morning, but I need to finish my school project. Can you go for me, Martha?
Martha: I guess I can. I am done with my homework. What did mom want you to buy?
Laura: Well, she wanted me to buy enough groceries for the whole week. Besides meat, some fish and vegetables, we can buy whatever else we want for snacks and breakfast.
Martha: What do you want for breakfast?
Laura: I guess some cereal as usual.
Martha: I do not want cereal every day. I will buy some pancakes and syrup then.
Laura: Get the new Fine Food pancakes in the frozen food section please. I want to see how it tastes.
Martha: Do we still have enough coffee and cream for mom and dad?
Laura: Yes, we do. Talking about coffee and cream, you better buy some milk also. We almost ran out of it.
Martha: Next, what do you want for snacks?
Laura: Some chips would be fine with me. You probably want your chocolate cookies.
Laura:  As far as meat, mom wants some pork and some chicken.
Martha: Just any kind of pork?
Laura: I forgot to ask mom about that. Anyways, you can ask the butcher for his opinion. He knows what is best.
Martha: How about fish?
Laura: Mom wants some salmon and some catfish. Make sure that they are fresh.
Martha: How much salmon and catfish should I buy?
Laura: Oh, buy four pieces of salmon filet and four pieces of catfish filet. Mom does not like to get the whole fish.
Martha: Are these fish filets sold by weight or by the piece?
Laura: I am not very sure. Just buy four decent sized pieces. Not too big and not too small.

Summary: 
Laura was asked by her mother to buy groceries. Laura wants Martha to help her, because she has to finish a school project. Martha will buy pancakes, syrup, milk, chips, pork, chicken, 4 salmon fillets and 4 catfish fillets.