I believe I do have a timeline of events that you might find illuminating.
Newt knocks on the door of a hotel room. Susanna opens the door and greets him by saying: “Mr. Noone, I presume.”
Susanna thanks Newt for “filling in” and goes on to say: “I’m terribly sorry about breaking your duck.”
Despite not usually drinking, Newt takes a swig from a hip flask that Susanna has brought, since she points out to him that it is “rather a day for doing things you don’t do”.
They exchange awkward, but affectionate, conversation as they mentally prepare themselves for what they came to do.