Are you a flake?

[Kazino]

... changing your plans <br>
... can't honor an agreement <br>
... can't respond mails in time <br>
... make promises you can not keep <br>

My opinion is that this question is too general to have a simple answer.

In my case - I'll never do this first. In other words ... I'm like a mirror (except cases when person really doesn't realize what s/he's doing) - I will never be a flake with good/trusted person.