#include <iostream>
#include <string>
#include <vector>
#include <utility>
// !! You had no use for iomanip

using namespace std;

struct ITM_TYPE 
{
	std::vector< std::pair< std::string, float > > items;
	int seatN;
};

// !! You had an unused function here

int main()
{
	// !! These had no business being global variables
	int N_ITEMS;
	int N_SEATS;
	int seat;
	int tItems = 0;

	cout << "Enter the number of seats: "; 
	cin >> N_SEATS; //retrive number of seats

	// !! This is not needed if you iterate starting at 0
	N_SEATS += 1;

	// !! You can not dynamically create arrays like you did. Do it like below
	// !! Also you used N_ITEMS incorrectly as opposed to N_SEATS
	// !! This was also out of scope inside the for (the second for did not know it existed)
	// !! Plus it was being re-created on every iteration
	std::vector< ITM_TYPE > items;

	for( seat = 1; seat < N_SEATS; seat++ ) // loop for each seat
	{
		cout << "Enter number of items for seat" << seat <<": ";
		cin >> N_ITEMS; //get number of items for seat
		tItems += N_ITEMS;

		string name;
		float price;

		ITM_TYPE nItem;
		nItem.seatN = seat;

		// !! If you are initializing an iterator variable, then incrementing on each
		// !! loop, then just use a for instead of a while. Thats why it exists
		for( int i = 0; i < N_ITEMS; i++ )
		{
			cout << "Input item name: ";
			cin >> name;

			cout << "item[" << i << "].name SET" << endl;
			cout << "Input item price: ";
			cin >> price;

			cout << "item[" << i << "].price SET" << endl;

			nItem.items.push_back( std::pair< std::string, float >( name, price ) );
		}

		items.push_back( nItem );
	}

	for( int i = 0; i < items.size( ); i++ )
	{
		std::cout << "Seat #" << i + 1 << std::endl;

		for( int j = 0; j < items[ i ].items.size( ); j++ )
			std::cout << "Name: " << items[ i ].items[ j ].first << "\nPrice: " << items[ i ].items[ j ].second << std::endl;
	}

	system( "pause" );

	// !! You did not indicate a successful end of program
	return 0;
}