How to manage two tables in SQL Server

i have two tables offer1 and offer2

The two tables are

Offer1 
Offer2ID|OfferName|OfferExpiryDate

Offer2
Offer2ID|OfferName|OfferExpiryDate

now i have third table which keeps record

offersentdetail 
offerID|senttime|sentCount|UserID 

now i want output sent on Specifc userID

Output will be like

UserID | OfferID | OfferName