I need a few samples of what one would write to exisiting customers current cust

I need a few samples of what one would write to exisiting customers current customers and potential new ones to entice their business thank them for their business etc for a hospitality event & sales for a hotel or an event group for their group events (talk about all groups sports conventions weddings reunions etc)also marketing aspects/approaches im looking for quality not quantity im looking for around 3 samples to show off different styles/enticements/approaches etc i want something that draws them in and keeps them reading then just a long list of what we can do but nothing flashy like HUGE BOLD FONT. need this asap