Sure, here are a few rephrased options:
1. **Professional and neutral:**
"I'm currently awaiting ticket assignment."
2. **Slightly more proactive:**
"I'm standing by for the ticket to be assigned."
3. **Concise and casual:**
"Waiting for the ticket to be assigned."
4. **Polite and formal:**
"I'm currently in a holding state until the ticket is assigned."
Would you like it tailored for a stand-up update, Slack message, or email?