Auto search in a form field

Hi friends,

I create customer master Item and create three field:

1. Customer No  2. Customer Name 3. Date

Now in another item i also create Customer Name field ,

I want when i select Customer name then customer no and date auto come from customer master item-type ,but data comes in a different way like below mention:

In this field when i type 2-3 words then customer name autosearch and when i select it then Customer No and date automatically comes before saving the form.

So anybody can help on that then it is more appreciable.

Thank You

Abhishek Srivastava