Feedback on Open Booking specification

Hi all,

Great to see you just now. The feedback provided during the limited
discussion time was hugely valuable.

Please see the Open Booking spec we were discussing here:
https://docs.google.com/document/d/1QMj_w2tuOvxRfctu70JjSv1WgFKvNfU5URCmIB4sSu8/edit

Please do comment on and contribute to the open issues (blue boxes). The
three blue boxes cover the issues we touched on in the call. Note I'll
shortly be updating the spec to replace bookableItemId with zero-price
offers as just agreed.

As Leigh said, we can easily have another call or create more discussion
time for any issues that require it.

Many thanks,

Nick