I think you can do your task by using
Windows Workflow Foundation.
By using Workflow you can simulate below mentioned kind of scenarios.
e.g.
Simon needs a loan to purchase a new Ferrari to impress his new girlfriend.
1.He goes to bank and explains his need.
2.Bank checks his credit history.
3.Based on credit history, Simon was offered multiple loan options.
4.Simon selects one of options.
5.Bank approves loan, money gets transferred to Simon's account.
For more info check this COP Article :
Jump start Windows Workflow Foundation
Another Link :
Windows Workflow Foundation Tutorials
I hope this will help to you. :)