One problem I do get is this, you get a text with a few possible dates for gigs, you reply right away with the ones you can do but hear nothig back, a few weeks or even months later, "ok I'll be at the venue for about 6.30 on Saturday", venue? Saturday? what's all this? "I did text you"
I can't keep every possible date free just from an enquiry.
Same as "can you send me all your free dates?", err no.