--autoflag we signal that we want to leverage the existing auctioneer infrastructure to permit both peers to communicate with each other in order to finalize the ticket negotiation.
autoflag is ommitted, then only the capacity and balance need to be specified, otherwise, all the other information one presents when submitting a full order needs to be specified.
Recipientfield which encodes Alice's node pubkey and pubkey that'll be used for the channel funding.
autoflag was set in the initial ticket, then we're done here! Both sides now just simply wait for the next batch, to be executed which'll result in a new sidecar channel being created.