we met yesterday at the Mindtree. vs we had met yesterday at your office

Some examples from the web:

• We met yesterday at the Thoroughbred Convention.
• We met yesterday at my office.
• We met yesterday at the gas station.
• We met yesterday at the Queen's Club.
• Elise Wassermann, French police, we met yesterday.
• We met yesterday after a fashion.
• After we met yesterday, I did some research, on you.
• We met yesterday about the receptionist position?
• Excuse me, we met yesterday.
• You recall that we met yesterday on the golf course, kind of...
• Just. When we met yesterday, I didn't know who you were.
• We met yesterday before you took off, but I'm guessing you don't remember that.
• When we met yesterday, I expressed my concern about what is known as the matching clause.
• Now, I told you, dear, we met yesterday.
• My dear lady: Would you do me the honour of dining with me today in the same restaurant for dinner, where we met yesterday?
• Our thanks also go, in particular, to Alexandre Lamfalussy, the President of the European Monetary Institute, whom we met yesterday evening, and who is also taking part in a colloquium now.
• When... when we met yesterday, when you arrived at the station, one of the first things you asked me was "Has been arrested?" Danny.
• No offense, Agent Hoffman, but we only met yesterday.
• I believe our husbands met yesterday?
• Nothing like the devastated boyfriend that I met yesterday.

Some examples from the web:

• We met yesterday at my office.
• That's why you thought we had met before.
• But we had met five years before that.
• We had met this friend of Bernie's, this guy named Don Felder.
• We met yesterday at the Thoroughbred Convention.
• We met yesterday at the gas station.
• We met yesterday at the Queen's Club.
• I... I didn't realize when we had met earlier.
• I wish we had met when we were 20.
• You're a wonderful guy, and who knows what would have happened if we had met before.
• If we had met when I was back in business, you would have been my number one lady.
• If we had met and loved When you get to the village over there, it's the house at the end.
• After we had met them a couple of times, they invited us to a party at their house.
• I wanted to tell you how much I wish we had met years ago.
• We were simply waiting until we had met with those involved, the representatives of the fishing sector.
• (chuckles) We had met only once when we were very young... when his family came to Punjab.
• We had met at the Club, made a plan, the usual one: take away the girl.
• Look, if we had met in another place, in another summer, or - or had different friends, different mothers...
• If we had met in any other context, we would so get along.
• Look, I just felt that if we had met under different circumstances, just a few weeks ago, that this could have been something, like, really amazing.