If it's the emergency number you're calling, and the operator doesn't understand the pizza/repairman etc code, they're poorly trained/suited for the job.
An example of the gameplay with that call is https://youtu.be/tEpyboLQ7bk?t=360
And an actual dispatcher call https://youtu.be/ZJL_8kNFmTI
"We've been here for five hours, everyone is hungry. Can we get some food, like order a pizza or something?"