Hi Mate,
Yes i have and exp in the Flight booking API integration and i have done the similar work before. We are compay and we have team of exp developer who can fulfill your complete requirement.
We are also having exp in the 3rd party app & different payment integration.
We have strong knowledge of C#, ASP.NET, ASP.NET MVC, WebApi, Angularjs, WPF, HTML5, CSS, Javascript, Jquery, SQL SERVER.
Please feel free to contact me to discuss more so we can start the work and discuss in details.
Thanks and best regards,
Peter