Where is Papa?

What do you tell a 2 year old child when she asks where her Papa is? How do you make her understand that he will be gone for the next half a month.

She must have asked me a million times where her Papa is since he left for France last night.

Here is my answer to her:

"Papa has gone to work."
"On a plane plane."
"To a far far away place."
"He will be back in soon."

And her responses will always be, " Papa where? Papa sleeping?"