1) The document describes Xiomara buying plane tickets at the Olaya Herrera airport in Medellin, Colombia to travel to London with her husband and two children.
2) Xiomara reserves four tickets to London and provides her ID to the ticket agent Sandra to complete the transaction.
3) Sandra assists Xiomara with seat selection, baggage, and food for the flight. Xiomara declines extra services and receives the tickets from Sandra, thanking her for her assistance.