Question 13 - 15 refer to following conversation:

Good morning, this is Bob Criswell calling for Ms. Kinnaman. (83) We had a brief chat yesterday about the storage units your company provides. You may remember my situation. (84) I'm planning to take a few months off from work to travel around the world. While I'm away, I plan to rent out my apartment, so (83) I need to find a place where I can store some of my furniture and personal belongings. You mentioned the different sizes of storage units that you have available, but I'm afraid I can't remember the exact measurements. (85) Would you please send me this information? You can send it to bobcriswell@flymail com. I hope to hear from you soon. Thanks for your help.

13. What is the purpose of the telephone message?