Is this dialogue OK?
Person A. Your dad is very ill.
Person B. I'll be out on the first flight.
I'll be out on the first flight.
I'll catch the first flight out.
I'll take the first flight out.
I'll grab the first flight out.

You can add another one.

Question

Is this dialogue OK?
Person A. Your dad is very ill.
Person B.  I'll be out on the first flight.
                   I'll be out on the first flight.
                   I'll catch the first flight out.
                   I'll take the first flight out.
                   I'll grab the first flight out.

You can add another one.

Answer

I'll CATCH the first flight out

This flows better

Answer

I like these ones best:
I'll catch the first flight out.
I'll take the first flight out.
I'll grab the first flight out.