You can't. You gotta make a reservation. It's all booked up.
6 seconds sound clip from the Casino (1995) movie soundboard.
You can hear this line at 01:32:13 in the Blu-ray version of the movie.
Quote context
[...]
- I gotta meet Clean Face. What about the Chez Paris?
- You can't. You gotta make a reservation. It's all booked up.
- It's impossible. It's booked up. You gotta make a reservation. It's very difficult to get in.
- It's OK. I'll use the service entrance. I'll see you at 9:00. All right.
- The battle between State gaming officials and Tangiers Casino boss Sam Ace Rothstein is heating up.
[...]