Try this
- Give your own answer if you can, while marking the other person’s attendance unconfirmed.
- Check the shared calendar or existing agreement before replying for both. If time is short, a separate answer may be more accurate than waiting for a joint one.
A worked example
“I’m interested, but I need to ask before saying we’re both coming.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Give an individual answer if a shared answer is not yet available.