The Dink Network

See i havent used the board in like amonth and i have been wqorking on a D-mod for a long time all i need now is how to make the sotry scripts like lets say i talked to some guy and he asked me to get something for him. and then i grabbed that item!
How do make it after i grab the item to have him say something after? like change what he says me and Kory would like to know that please help us well me thanks alot!