What is the woman doing now?

W: What did you say?
M: I said that it’s a fine day today. Why don’t we go for a walk?
W: Can you wait a few minutes? I have to finish the letter.
M: Will it take long?
W: No, about ten minutes, I think. Why don’t you go first and I’ll meet you in the park?
M: OK. I’ll wait for you near the garden.