Program to correct unwanted space and capitalization; but I don't want it to delete the first word

[Lavinator]

// Trying to run on Visual Studio
// EXAMPLE: THIS is a space TODAY.
// SHOULD BE: This is a space today.
// and end it with: Thank you for your time

NEVER MIND - I GOT IT TO RUN :)

#include <iostream>
#include <iomanip>
#include <string>
using namespace std;

int main()
{
	int c=0, d=0, e=0, i=0;
	string sentence;
	cout << "Enter a string: " << endl;
	getline(cin, sentence, '.');

	char nextChar;
	bool oneSpace = false;
	for (int i = 0; i < sentence.length(); i++)
	{
		if (sentence[i] == ' ')
		{
			if (sentence[e] == '.')
			{
				break;
			}

			if (!oneSpace)
			{
				oneSpace = true;
			}
			else
			{
				sentence.erase(i, 1);
				i = i - 1;
			}

		}
		else
			oneSpace = false;
	}
	for (int c = 0; c < sentence.length(); c++)
	{
		sentence[c] = tolower(sentence[c]);
		d = 0;
		sentence[d] = toupper(sentence[d]);
	}
	cout << sentence << "."  << "\n\nThank you for using this program" << endl;
	system("pause");
	return 0;
}