Looking on the internet deeply has found these results:

have a dinner is the most popular phrase on the web.

did you have dinner 1474,000 results on the web	have a dinner 12,170,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Sorry, I have a dinner tonight. Now these conferences, it's typical to have a dinner, and at that dinner, you kind of get to know each other, sort of like what we're doing here. I'm very flattered, Cassidy, but I have a dinner to attend. I have a dinner with Malden, and I can't be late. I have a dinner with a potential client and I'd love for you to join me. Sorry, I have a dinner tonight. I have a dinner with R.J. She's doing some research for me. No, I have a dinner date.

did you have dinner

1474,000 results on the web

have a dinner

12,170,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Sorry, I have a dinner tonight.
Now these conferences, it's typical to have a dinner, and at that dinner, you kind of get to know each other, sort of like what we're doing here.
I'm very flattered, Cassidy, but I have a dinner to attend.
I have a dinner with Malden, and I can't be late.
I have a dinner with a potential client and I'd love for you to join me.
Sorry, I have a dinner tonight.
I have a dinner with R.J. She's doing some research for me.
No, I have a dinner date.