softwareserial between arduino uno and esp8266

I have an Arduino UNO and HUZZAH ESP8266 module. I need to send data between Arduino UNO and ESP module via Software Serial. Right now I have the ESP module write data and Arduino UNO display data, but not working. When I run the Arduino UNO and open its Serial Monitor, nothing is printed using below source code.

1. ESP8266 RX PIN connected to Arduino UNO PIN 2.
2. ESP8266 TX PIN connected to Arduino UNO PIN 3.
3. Using the FTDI cable that came with HUZZAH ESP8266 to power this module. I just individually connected the RX and TX pins to the ARDUINO PIN 2 and 3 as mentioned above.

Any ideas what why not working? Below is code for both modules. Thanks,

Arduino UNO

#include <SoftwareSerial.h>SoftwareSerial ESPserial(2, 3); // RX | TXvoid setup(void){  //Start hardware Serial communication  Serial.begin(115200);  //Start the software serial for communication with the ESP8266 component  ESPserial.begin(57600);  }void loop(void){if (ESPserial.available()){  Serial.println("ESP available!!!");  Serial.println(ESPserial.read());}}

HUZZAH ESP8266

#include <ESP8266WiFi.h>#include <SoftwareSerial.h>SoftwareSerial ESPserial(2, 3); // RX | TXvoid setup(void){  //Start the software serial for communication with the Arduino UNO component  ESPserial.begin(57600);  //TODO: setup Wifi}void loop(void){   ESPserial.write("This message generated by ESP module.");   delay(500);}