Hii,
After deeply assessing the job post and attached pdf, your requirements are well understood and I possess the requisite skills to successfully deliver this project.
I'm a seasoned developer with 9 years of experience. I have high expertise in PHP, API Integration, CSS, MySQL, Bootstrap, JavaScript, Jquery, and Html. Therefore, I can implement the XML API of the hotel and flight as per your needs and have already done the same before.
For this API implementation, I have some questions related to your website kindly inbox me so, we can discuss further this project then we will decide the actual time and budget which will be required for this project.
Thanks
Regards