Sentence 1: Dan had some time off from work he had to use up. 
 Sentence 3: Dan asked them if they'd like to take a cross-country trip with him 
 Sentence 4:  His buddies all agreed 
 Sentence 5:  They went from Georgia to Arizona together, and had a blast 
 Option 1: Dan called up a few buddies. 
 Option 2: Dan took his wife on a trip to Hawaii.