Message send/Recive loop in Arduino and SM5100B

So I was wondering if anyone had any ideas that might help me. I need the following code to loop trough a set of mobile numbers with about a minute delay for each. If the Arduino receives a Positive ‘yes’ message I need this to break the loop and end it. If it receives a ‘no’ or a negative message I need it to continue its loop. right now I have it successfully compiling but while it delays correctly in the loop and prints the correct messages in the serial monitor it actually only sends a test message to the first number along with the AT commands to send to the next number (in the text message received by the first number) in this code I have included the receive message code yet, as I would like to get the loop working first before I try to break it.

any input at all might help me.

//THis code is sending both messages to first number
#include <GSM.h>

#define PINNUMBER “”
const int buttonPin = 4;
const int ledPin1 = 13;
const int ledPin2 = 12;
int buttonState = 0;

// initialize the library instance
GSM gsmAccess; // include a ‘true’ parameter for debug enabled
GSM_SMS sms;

// char array of the telephone number to send SMS
const char* number1 = “xxxxxxxxxxxxxxx”; // add any two mobile numbers here with international codes.
const char* number2 = “xxxxxxxxxxxxxxxxx”;

// char array of the message
char txtMsg[200]=“test”;

// connection state
boolean notConnected = true;

void setup()
{
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(buttonPin, INPUT);
// initialize serial communications
Serial.begin(9600);

Serial.println(“SMS Messages Sender”);

// Start GSM shield
// If your SIM has PIN, pass it as a parameter of begin() in quotes
while(notConnected)
{
if(gsmAccess.begin(PINNUMBER)==GSM_READY)
notConnected = false;
else
{
Serial.println(“Not connected”);
delay(1000);
}
}
Serial.println(“GSM initialized”);
}

void loop()
{
buttonState = digitalRead(buttonPin);
{
sendSMS();
}
}

void sendSMS()
{
digitalWrite(ledPin1, HIGH);
digitalWrite(ledPin2, LOW);
if(buttonState == HIGH) {
buttonState = 1;
};
if (buttonState == 1) {

digitalWrite(ledPin2, HIGH);
delay(1000);

Serial.print("Message to mobile number: ");
Serial.println(number1);

// sms text
Serial.println(“SENDING”);
Serial.println();
Serial.println(“Message:”);
Serial.println(txtMsg);

// send the message
sms.beginSMS(number1);
sms.print(txtMsg);
Serial.println("\nFirst Message Sent\n");
digitalWrite(ledPin2, LOW);

delay (60000);

digitalWrite(ledPin2, HIGH);
delay(1000);

Serial.print("Message to mobile number: ");
Serial.println(number2);

// sms text
Serial.println(“SENDING”);
Serial.println();
Serial.println(“Message:”);
Serial.println(txtMsg);

// send the message
sms.beginSMS(number2);
sms.print(txtMsg);
sms.endSMS();
Serial.println("\nSecond Message Sent\n");
digitalWrite(ledPin2, LOW);
}
}