I'm a little confused as to whether you are referring to renting a pontoon boat or booking a fireworks cruise? If you've booked a fireworks cruise over the phone, you can input the confirmation number into MDE by going to the "Notes" section in your plans section. When you open "Notes", it gives you the option of selecting a date, time, place and then manually inputting the info such as "fireworks cruise" plus the confirmation number. The info will then appear in your plans on MDE.