4709ae2a_Expedia_s_Cookie_Policy__What_they_do
[Types of cookie] Advertising cookies [What they do] 
Advertising cookies are used to ensure that we only show you the adverts and messages we think you will want to see. Cleverly, they also help us to restrict the number of times you see the same advert, ensure the ad is properly displayed.
Expedia's Cookie Policy
What they do