C++ :: How To Skip A Block Of Commands When User Interrupts

I am working on a program that does something like this,

Void main() {
cout<<"H";timedelay(1);
cout<<"E";timedelay(1);
cout<<"L";timedelay(1);
cout<<"L";timedelay(1);
cout<<"O";timedelay(1); //timedelay(int a) is a function which gives a delay of 'a' seconds.
{
....
}
}

This code is just for fancy and I would like to squish in some statements which would give the user an option to skip it (by entering any keyboard key),and resume with the rest of the program.