Wordpress API development - hotel & travel

New wordpress plugin. We would like to have a wordpress plugin that make use of Expedia and Skyscanner api. Here are the requirement: - Plugin is able to add credential/ID for EAN and skyscanner respective. - 2 search categories : flight & hotel. - Allow to enter destination, start date, end date, number of people and etc. - Entered value will be added as parameter to affiliate url and redirect user. - Enable to add a widget. - Widget design to be discussed - Widget can be setup to default the destination placeholder (e.g. Japan as preferred destination) - Can specific to only display flight search, hotel search, or both. - ability to add redirect link or only track id. - Add tracking cookies or pixels for each individual widget Additional ( to be discussed) : - Plugin design has to be compatible to add additional affiliate platform in future, not hard coding everything. - Ability to create a shortcode (or other method) to allow api to return search response and display in the wordpress page(instead of redirecting). - Able to design search result section. This requirement will change slightly before project starts as new idea may come up. Requirements above are the basic requirements.