servo

#include <LiquidCrystal.h>
#include <Servo.h>

Servo myservo; 

int IR1 = 7;
int IR2 = 9;

int Slot = 6;           //Enter Total number of parking Slots

int flag1 = 0;
int flag2 = 0;

int pos = 0;

int Contrast=100;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {
  // put your setup code here, to run once:
  pinMode(IR1, INPUT);
  pinMode(IR2, INPUT);
  analogWrite(6,Contrast);
  lcd.begin(16, 2);
  myservo.attach(8);
  Serial.begin(9600);
}

void loop() {
  if(digitalRead (IR1) == LOW && flag1==0){
if(Slot>0){flag1=1;
if(flag2==0){myservo.write(0); Slot = Slot-1;}
}else{
lcd.setCursor (0,0);
lcd.print("    SORRY :(    ");  
lcd.setCursor (0,1);
lcd.print("  Parking Full  "); 
delay (3000);
lcd.clear(); 
}
}

if(digitalRead (IR2) == LOW && flag2==0){flag2=1;
if(flag1==0){myservo.write(0); Slot = Slot+1;}
}

if(flag1==1 && flag2==1){
delay (1000);
myservo.write(100);
flag1=0, flag2=0;
}

lcd.setCursor (0,0);
lcd.print("    WELCOME!    ");
lcd.setCursor (0,1);
lcd.print("Slot Left: ");
lcd.print(Slot);

}