public List<Hotel> getListHotelsOfCity(string city)
 {
     libGetHotels.libGetHotels libHotels = new libGetHotels.libGetHotels();
     return libHotels.getAvailableHotelsOfCity(city);
 }
 public List<Hotel> getListHotels()
 {
     libGetHotels.libGetHotels libHotels = new libGetHotels.libGetHotels();
     return libHotels.getAvailableHotels();
 }