This is a bus reservation system written using the c++ programming language. The program allows the user to add bus information, reserve bus seat, show reservation information and show information regarding the buses available. This program can be extended, feel free to add additional features to the program.

Code:

#include <conio.h>
#include <cstdio>
#include <iostream>
#include <string.h>
#include <cstdlib>

using namespace std;

void intro()
{
     system("color 03");
     system("cls");
  cout<<"\t\t\t\t*\t*";
  cout<<"\t\t\t\t**\t**";
   cout<<"\t\t\t\t***\t***";
   cout<<"\t\t\t\t****\t****";
   cout<<"\t\t\t\t*****\t*****";
    cout<<"\t\t\t\t******\t******";
   cout<<"\t\t\t\t*******\t*******";
   cout<<"\t\t\t\t*******\t*******";
   cout<<"\t\t\t\t******\t******";
   cout<<"\t\t\t\t*****\t*****";
   cout<<"\t\t\t\t****\t****";
   cout<<"\t\t\t\t***\t***";
   cout<<"\t\t\t\t**\t**";
   cout<<"\t\t\t\t*\t*";
}

static int p = 0;
class Bus_Reservation
{
  char busn[5];
  char driver[10];
  char arrival[5];
  char depart[5];
  char from[10];
  char to[10];
  char seat[8][4][10];

public:
  void add_bus();
  void reserve_bus();
  void empty();
  void show_bus();
  void is_bus_available();
  void position(int i);
}

bus[10];

void Bus_Reservation::add_bus()
{
  cout<<"Enter bus number: ";
  cin>>bus[p].busn;

  cout<<"Enter Driver's name: ";
  cin>>bus[p].driver;

  cout<<"Arrival time: ";
  cin>>bus[p].arrival;

  cout<<"Departure: ";
  cin>>bus[p].depart;

  cout<<"From: ";
  cin>>bus[p].from;

  cout<<"To: ";
  cin>>bus[p].to;
  
   cout<<"\n Added Successfully....";
 
  bus[p].empty();
  p++;
  
  getch();

}

void Bus_Reservation::reserve_bus()
{
  int seat;
  char number[5];
  top:
  cout<<"Bus number: ";
  cin>>number;
  int n;
  for(n=0;n<=p;n++)
  {
    if(strcmp(bus[n].busn, number)==0)
    break;
  }
  while(n<=p)
  {
    cout<<"\nSeat Number: ";
    cin>>seat;
    if(seat>32)
    {
      cout<<"\nThere are only 32 seats available in this bus.";
    }
    else
    {
      if (strcmp(bus[n].seat[seat/4][(seat%4)-1], "Empty")==0)
      {
        cout<<"Enter passanger's name: ";
        cin>>bus[n].seat[seat/4][(seat%4)-1];
        break;
      }
    else
      cout<<"The seat no. is already reserved.\n";
      }
      }
    if(n>p)
    {
      cout<<"Enter correct bus no.\n";
      goto top;
    }
    cout<<"\n Added Successfully....";
	getch();
  }


void Bus_Reservation::empty()
{
  for(int i=0; i<8;i++)
  {
    for(int j=0;j<4;j++)
    {
      strcpy(bus[p].seat[i][j], "Empty");
    }
  }
}

void Bus_Reservation::show_bus()
{
  int n;
  char number[5];
  cout<<"Enter bus number: ";
  cin>>number;
  for(n=0;n<=p;n++)
  {
    if(strcmp(bus[n].busn, number)==0)
    break;
  }
  while(n<=p)
  {
  	cout<<"\n@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n";
  	cout<<"Bus no: "<<bus[n].busn
  	<<"\nDriver: "<<bus[n].driver<<"\nArrival time: "
  	<<bus[n].arrival<<"\nDeparture time: "<<bus[n].depart
  	<<"\nFrom: "<<bus[n].from<<"\nTo: "<<
  	bus[n].to<<"\n";
  	cout<<"@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n";
  	bus[0].position(n);
  
  	int a=1;
  	for (int i=0; i<8; i++)
  	{
    	for(int j=0;j<4;j++)
    	{
      	a++;
      	if(strcmp(bus[n].seat[i][j],"Empty")!=0)
      	cout<<"\nThe seat no "<<(a-1)<<" is reserved for "<<bus[n].seat[i][j]<<".";
    	}
  	}
  	break;
  	}
  	if(n>p)
    	cout<<"Enter correct bus no: ";
    	
  	getch();
}

void Bus_Reservation::position(int l)
{
  int s=0;p=0;
  for (int i =0; i<8;i++)
  {
    cout<<"\n";
    for (int j = 0;j<4; j++)
    {
      s++;
      if(strcmp(bus[l].seat[i][j], "Empty")==0)
        {
          cout.width(5);
          cout.fill(' ');
          cout<<s<<".";
          cout.width(10);
          cout.fill(' ');
          cout<<bus[l].seat[i][j];
          p++;
        }
        else
        {
        cout.width(5);
        cout.fill(' ');
        cout<<s<<".";
        cout.width(10);
        cout.fill(' ');
        cout<<bus[l].seat[i][j];
        }
      }
    }
    cout<<"\n\nThere are "<<p<<" seats empty in Bus Number: "<<bus[l].busn;
  }

void Bus_Reservation::is_bus_available()
{
  for(int n=0;n<p;n++)
  {
  		cout<<"\n@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n";
    	cout<<"Bus number: "<<bus[n].busn<<"\nDriver: "<<bus[n].driver
    	<<"\nArrival time: "<<bus[n].arrival<<"\nDeparture Time: "
    	<<bus[n].depart<<"\nFrom: "<<bus[n].from<<"\nTo: "
    	<<bus[n].to;
    	cout<<"\n@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n";
  }
getch();
}

int main()
{
system("cls");
int w;
while(1)
{
system("cls");
    intro();

  cout<<"\n";
  cout<<"\t\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n";
  cout<<"\t\t\t1. Add Bus\n\t\t\t"
  <<"2. Reservation\n\t\t\t"
  <<"3. Show Bus\n\t\t\t"
  <<"4. Buses Available \n\t\t\t"
  <<"5. Exit";
  cout<<"\n\t\t\t@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n";
  cout<<"\n\t\t\tEnter your choice:-> ";
  cin>>w;
  switch(w)
  {
    case 1:  bus[p].add_bus();
      break;
    case 2:  bus[p].reserve_bus();
      break;
    case 3:  bus[0].show_bus();
      break;
    case 4:  bus[0].is_bus_available();
      break;
    case 5:  exit(0);
  }
}
return 0;
}