Flaky subs and wannabe’s

I’ve been having an issue when chatting with potential subs to meet up for the first session, they cancel or ghost me on the day of. I wouldn’t think anything of it but I’m getting the same reasons from them: my stomach or have to stay late at work or I’m sick. And the bad part is that these guys initiate contact with me and ask me to serve. Once I ask my screening questions and decide to meet I’m always eager to use/train a new sub so imagine the disappointment when they cancel. I’ve started to take this personal and think these guys do this on purpose. What are your thoughts?