Definition: In this task, you're given five sentences, numbered 1 through 5, and two options a and b for possible titles for the story. Your job is to choose the title that better fits the story. Indicate your choice by 'a' or 'b'.
Input: Sentence 1: Bill hated traveling. Sentence 2: He had to go to another state for work. Sentence 3: Bill bought a train ticket because he did not want to fly. Sentence 4: The train was delayed and Bill missed a big meeting. Sentence 5: Bill swore that next time, he would fly. Choices: a. Losing the lottery. b. Travel.

b