What are these two people talking about?

M: What kind of dress are you looking for?
W: Since it’s getting warmer this time of the year, I want something lightweight. What do you think would be the best?

W: I’ve to go to Washington this afternoon, but I’m too tired to drive and the bus is so uncomfortable.
M: No problem. I’ll save you the cost of a taxi by dropping you off at the train station on my way to work.