How does the Hotel and Airlines booking websites work?
Let's say we want to build an online booking website for hotels and airlines....
I'm not sure from where to start...
Is there some system I can build my application on top of it or something?

How does the Hotel and Airlines booking websites work?
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Let's say we want to build an online booking website for hotels and airlines....
I'm not sure from where to start...
Is there some system I can build my application on top of it or something?
