Dear Heart (1964)

Single and alone, Evie Jackson (Geraldine Page) arrives in New York City for the annual Postmasters' convention. Staying at her hotel is a womanizing salesman newly promoted to his marketing department and trying to adjust to having become engaged. When his path crosses Evie's, she wonders if this is finally the man for her, while her ways just seem to annoy him. At least to start with.