Short answer
Your written quotation confirms the delivery schedule for this suits commission, including cloth, production and destination. New York's proposed visit window is MAY · JUN · SEP · OCT; dates and venues are confirmed individually.
Most two-piece commissions take around six to eight weeks from approved measurements and deposit. Your written quotation confirms the schedule for this garment, cloth and destination.
New York's window
The proposed MAY · JUN · SEP · OCT visit is the planning point for New York commissions. Dates, venues and available appointments are confirmed individually in writing as the month approaches.
The itinerary is a proposal: months are planned, dates and venues confirmed individually. Final quotations are confirmed in writing before you commit.