Noah: My oven looks horrible! Any ideas how to make it shiny again? Thanks!
Martha: try Astonish cleaner and a scraper- both very cheap! 
Beth: try gel oven cleaner- you simply put it on for a while and wipe it off. Very easy!
Martha: i have to try that gel cleaner thing
Noah: i’m afraid they won’t work! It’s very bad!
Martha: get a professional do it for you though it’s expensive
Noah: how much?
Beth: £80-100  
Noah: jesus christ! 
Beth: you have to keep your oven clean and hygienic
Martha: I guess you don’t have a choice 
Noah: is it really worth the money?
Beth: i have my oven done once a year and can tell you it’s worth it!
Martha: i agree it’s gonna look like a new one
Martha advices cleaning the oven with Astonish cleaner and a scraper, while Beth - with oven cleaner. Noah's oven is really dirty so she will get a professional to clean it, although it's expensive.