I am trying to book award ticket with two segments operated by Copa (route: US-PTY with 22h connection-Central America). There is definitely an availability for each flight (double checked), I can go to payment and then I get an error (we can't confirm availability...). I spoke to the M&M agent and she also tried to book this itinerary for me but even though she had seats available, she couldn't create PNR. She doesn't know why. Any ideas? Is this some common problem with Copa and M&M? Exactly the same itinerary is available on the Copa website without any issues, so I guess it's not a problem of the route, specific legs etc.