Scanning integers in C in xCode : so I am trying to scan some integers in C (so taking in the user's first and last name, departure and arrival locations) but I am getting this error that the type of declaration I've made is inconsistent. I'm a little new to C still so bear with me as this may be a trivial thing. Thanks in advance. 


Here's what I am trying to do:

    #include <stdio.h>

    int main (void) {
    
    char lastName, firstName, depart, arrive;
    
    printf("Please enter passenger's last name: ");
    scanf("%s", &lastName);
    printf("Please enter passenger's first name: ");
    scanf("%s", &firstName);
    printf("Which airport are you departing from? ");
    scanf("%s", &depart);
    printf("Which airport will you be heading to? ");
    scanf("%s", &arrive);
    printf("LAST NAME: %s FIRST NAME: %s FROM: %s TO: %s", lastName,   
    firstName, depart, arrive);
    
    
    
    return 0;
    }


