Provide the theme summaries for the following conversation: 

Samuel: this Microsoft Office prices are ridiculous, I have looked that up yesterday and it was like 100 euro a year
Owen: it can't be that expensive lol
Samuel: check for yourself
Owen: it says that it's 100 euro but for 6 users, not that much to be honest
Samuel: it is only for home use...
Owen: yeah, and what else did you want?
Samuel: for business, to have it in the office
Owen: well for business it says its 8,80 euro a month, i wouldn't say that's a lot either
Samuel: but you used to pay one fee and you had a one time license
Owen: i know, you can still do that - it's like 150 euro
Samuel: and that's cheap for you?
Owen: they have free plan also
Samuel: do they?
Owen: yes, if you have outlook account you can use word, excel, etc. completely free, basic functionalities but for most people i would say it's more than enough
Samuel: i wasn't aware of that
Owen: you should check that out

Summary: 
Samuel complains about the ridiculous prices of MS Office. Owen informs Samuel that MS Office for business is not as expensive as it seems to be, and there is a free plan as well.