sentence: At first , I called a travel agent but he said he would n't be able to book me a flight for two months , so I called my brother who heavily regret me for not having told him about the trip , and he told me he would book a flight sooner than that good - for - nothing travel agent .
modified: At first , I had called a travel agent but he said he could n't be able to book me a flight before two months , so I called my brother who heavily regret me for not having told him about the trip and he promised me he would have booked a flight sooner than that good for nothing agent .
transformation: VERB:TENSE, VERB:TENSE, PREP, K, K, PUNCT, VERB, VERB:TENSE, VERB:FORM, OTHER, NOUN