In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.
Q: I had to go on a business trip to California last week and I needed to fly there. I took a cab to the airport with my carry on and suitcase. Once there, I went to my airlines check in desk and waited on line to check my suitcase. There were lots of different people on the line, from business men and women like me, to families, even a high school band. When I finally reached the desk, a representative for the airline was there to help me. She was very cheerful and helpful, and I was able to put my suitcase up on the conveyor belt and watch it join other suitcases on their way to the airplanes. I was even able to switch my seats because there were available seats still left on the plane. Once I was all confirmed, she printed out my boarding pass and I was able to continue on to security and then onto my plane.
Question: How many bags did they have checked?
A:
One suitcase.