Creating Lead > record type with flow builder

Hi, I have created a simple lead creator flow with a contact us enquiry form... I was struggling to define what lead record type it saves under. I have 3 different types of lead record types (Advertising, Sale, Buy) 

I want the record to be saved as "Advertising" automatically as the form is called "Advert Enquiry Form" 

So i have a screen component with FN, LN, Company, Advert Placement picklist, Email 

Then Create record   I managed to get it to work with a picklist with one choice called "Advertising" that recorded the record type but I don't want this as users are filling out the "Advertising Enquiry" it goes without saying. 

Any Help would be much appreciated as its starting to crack me ;)!