( I work near to a city park where a lot of events like fairs or public concerts are held.)

Me: “Thank you for calling, how may I help you?”

Caller: “You will be shooting off fireworks tonight, right?”

Me: “We won’t be, but yes, the city is setting off fireworks.”
“
Caller: “When is that going to happen? When have you scheduled it?”

Me:  “We aren’t scheduling it, but my guess is the city will be shooting them off at around sunset.”

Caller:  “Well, when is that going to happen?”

Me: “I don’t know ma’am.Wwe aren’t in charge of that. Perhaps you want to try calling the park and rec department?”

Caller: “How can you not know when you scheduled the sun to set?”

Related:
The Sun Is Such A Slacker Sometimes