Two steps running at once in java

Question

I have the following code to take the input from the user under case 1 of switch statement:

public static void main(String[] args)
{ 
  Scanner input = new Scanner(System.in);
  SimpleDateFormat myFormat = new SimpleDateFormat("dd MM yyyy");
  Guest gstObject = new Guest();

  System.out.println("Enter reservation ID:");
  gstObject.setId(input.nextInt());

  System.out.println("Enter first name:");
  gstObject.setfName(input.next());

  System.out.println("Enter last name:");
  gstObject.setfName(input.next());               


  System.out.println("Enter check-in date (dd/mm/yy):");
  String cindate = input.nextLine();
  if(null != cindate && cindate.trim().length() > 0){
     Date date1 = myFormat.parse(cindate);
  } 

  System.out.println("Enter check-out date (dd/mm/yy):");
  String outdate = input.nextLine();  
  if(null != outdate && outdate.trim().length() > 0){
     Date date2 = myFormat.parse(outdate);
  }
}

The code takes input one by one simultaneously upto Enter last name: but runs last two check-in date and check-out date step at once and doesn't ask for input of the check-in date.

I tried by switching places of these input. I also ignores to take input that is on the top and takes input that is at the bottom. Also tried by placing check-in date and check-out date at the very top turnwise. They ignore to take inputs and jumps directly to Enter reservation ID.

How can i solve this matter ?