Yes, I think this much about almost every human interaction...
Shower musings: starting out asking-a-favor or customer service interactions by asking "Are you the right person to help me with X?" is smart...
If they aren't, they at least get the sense right away that you aren't going to be miffed or defensive when they point you to someone else. It saves them from feeling like they're delivering bad news. Which makes them more likely to want to help you find the right person.
If they are the right person, they start their interaction with you by being positive and affirmative that they can help you. Like saying "I can do this!" to yourself in the mirror. And then confirmation bias hits, where because they already said they could help you, they are more likely to do the extra bits to really make sure you get what you need, because no one wants to have lied about themselves.
If they aren't, they at least get the sense right away that you aren't going to be miffed or defensive when they point you to someone else. It saves them from feeling like they're delivering bad news. Which makes them more likely to want to help you find the right person.
If they are the right person, they start their interaction with you by being positive and affirmative that they can help you. Like saying "I can do this!" to yourself in the mirror. And then confirmation bias hits, where because they already said they could help you, they are more likely to do the extra bits to really make sure you get what you need, because no one wants to have lied about themselves.