Website for booking tickets Backend written in Node.js. At the start user provided with three options: Book Tickets, Order a call, Submit complaint/question. If user decided to book tickets, he will be shown an image of the plane with free seats colored with white, taken colored with black and chosen by the user colored with gray. Also user choose a flight destination and date. Afterwards user will be asked to pay for the order, if payment was successful, email will be sent to user. If user decided to order a call or submit a complaint/question - he will receive a confirmation email. All submissions of the user(order of tickets, call order, complaint/question) are stored in DataBase (MongoDB)