Embarrassing Texting

Yesterday I have chatting with my friend Ria. Here below the chronology:
Ria: "Night Ito, how are you?" (Ito is the way batak people calls the opposite gender on relatively same age).
Me: "Night, I'm fine. How is Banjar's girl?"
Ria: "Why you call me as Banjar's girl? Hmm, it seems I am texting to wrong guy"
Me: "It's OK to call you Banjar's girl because currently you are in Banjarmasin, at least for next month, hehe.. Anw, since when did you decide to call me Ito?"
Ria: "Oh.. I think I am chatting with wrong guy, sorry..."
Me: "No, I'm the right one. I'm OK with the way you call me. Obviously you still remember the Batak's culture, proud of you."
Ria: " Now, I'm very sure that you are wrong guy. For confirmation, do you really know my name?"
Me: (after recheck the sender) "Ups, you aren't wrong sending the text. I am the one who wrongly reply it. Sory Ria, I thought it was my other friend, It's very embarrassing."
Ria: "It is OK, it's just ordinary"
Me: "Ok, sorry Ito.."
Ria: "That's OK, just forget it."

Actually, when i received the message from Ria I thought it was from Raissa. I tought from Raissa Silalahi instead of from Ria Silalahi. Raissa is my new friend and Ria is my old friend. Since Raissa is my new friend and coincidentally I was discuss about her with my roommate, I thought Raissa is the sender. It's very embarrassing when know that I was texting in wrong perception about the person i chat with, haha..
PS: Read the sender name carefully before reply the SMS