Hi @serviceweb
For something like that, you need to create a new custom form with a get method. This page should give you more idea about it: http://www.w3schools.com/php/php_forms.asp. After that, you need to check the $_GET variable and use it to query the custom post type. This page should give you more idea about it: http://www.advancedcustomfields.com/resources/query-posts-custom-fields/.
I hope this helps.
