Three days ago I set up a fourth date with a girl for Friday (today). I sent her a message at 3 pm and asked if 5 pm was a good time. Two hours later she responded:

"Hi Sorry for the late reply. Looks lite there'll be a family dinner tonight. Can we meet tomorrow instead? "

Is this acceptable or not in your view?

not really but since you cant make her comply then you have to act like its no big deal.

However I would strongly suggest you propose an alternate time to meet, not the one she offered, and say you are busy during her time if she asks (but dont explain yourself)

When I get flaked on its normally a horrible sign for a successful outcome, so you want to do damage control as best you can.

I answered "I'll call you tomorrow".

I had already invited her to a barbeque party today. However, I don't really feel like contacting her after what she did. Not sure what to do...

one flake is not a huge deal. I agree with not complying to her time. But at 1 flake I would still be cool. Second flake is a deal. Third flake (if I even allow it to happen) is a deal-braker.

_________________
nice guys don't get laid
"It's disrespectful not to bang them when they sleepover." (Hellhound)

im looking at it statistically, I know when a girl feels she can get away with flaking then I dont have the level of attraction I like, and it objectively makes my chances slimmer. So you are right that "its not a big deal" other then the fact that it indicates her interest level is not where you want it.

Also B if you dont feel like calling her, then dont. I often say ill call or text chicks "tomorrow" then freeze them out for a bit. You are not obligated to reschedule your date at her convenience, let her come to you.

To be honest I would not make such a big deal out of it, Brasero. This was your first date with the girl? You cannot expect her to ditch her family for a guy she just met. If I had a family dinner, I would probably cancel on the girl as well, even if I was initially interested in her.

Go with detox75's strategy. Tell her you're busy tomorrow and schedule another time, but please do not let this be a dealbreaker. It shows she cares about her family as well and does not immediately run to any random guy she just met. Sure, you might not have her at the level of interest you want her to be, but this usually takes time with girls. Just a bit lame she cancelled on such a short notice in my opinion.

Schedule a new date and have such an amazing time with her that she becomes so interested in you that she'll not cancel a second time

It was the fourth date.

I actually called and said I was invited to a barbeque party, and that she could join if she wanted to. She did, and we had a good time.

Now I'm unsure what to do next, because I will go on holiday for three weeks now, and then I will move out of town for work (300 miles away), while she will start studying in the town (Town A) where we live now. I will come back to Town A for a weekend in three weeks for the graduation party.

How about sending her a message like this?

"Hi, I'll be back in town in three weeks for the graduation party. How about we meet and figure out what to do onwards?"

I probaby would have made a joke of it and turned it around and made her start qualifying herself to you...

something like.. "If this is some trick to get me to meet your family, forget it. We only just met. "

Definately too late for that now, but may help for next time...