I want you to write 3 versions of a positive response and suggested next steps to NAME_1’s email below:
NAME_1’s email:
So sorry for the late response to your email, I was tied up on Energy Asia preparation and the event itself last week.

We certainly are glad to share on Decarbonisation and its development throughout the business value chain. 
Since we just started Q3 today, September would be a good time to have the session since your team is tied up with commitments. 

Just to get started, I think reading our Corporate Sustainability contents on NZCE2050 would be a good option. 
We also released some PD&T specific contents as below to bring up the awareness level of our division.

Do highlight to us if this is sufficient, we can have direct communication through MTeams if you have queries. 
We can plan out on the specific date too, and the audience demographics.