Hello - Advice is needed. Is the name of a website key in google rankings. Amazon, Thomson, Ebay,Comet etc all have website names that aren't related to products they sell. A lot of people go for domain names such as mobilephonedeals for mobile phones or holidaypackagedeals for holidays If they went for flamingodingo as a name and sold say phones - if they got all other sapects of SEO correct - would it affect things much?
Basically it is not that much important that you can your main keywords in the domain name of your website. If it handled easily then go for it otherwise select the next possible combination.
It is a factor out of 200 factors. If you go for random name, you have to work harder in other aspects of seo.
use keywords in doamin like your site is SEO related and you want to buy domain name so make domain like seo-company-services, seo-company this type