Philip did not turn up with the car. This did not surprise Elizabeth. She took the bus to the airport. Vicki’s plane was late. Elizabeth walked up and down on the shiny tiles. She did not like people to observe that she was being kept waiting, and at least one girl was smiling at her in that shy, dawning way which meant she had seen Elizabeth on TV; but there was no decent coffee to be had, and no civilised place to sit. She measured her pulse on a tin machine outside the chemist shop. The reading she got was so low that she thought the thing must be out of order. She strolled into the shop, stole a twenty-five dollar Dior lipstick and a cheap plastic-covered address book and tried again: the adrenalin rush of petty theft showed. The address book would do for Vicki, if she hadn’t missed the plane altogether. She transferred the stolen items from her sleeve to her bag and went into the cafeteria for a bottle of mineral water.
Is "The address book would do for Vicki, if she hadn’t missed the plane altogether." an imaginery conditional sentence?
I don't know what the meaning of "The address book would do for Vicki" is in this context. And What is the use of "altogether" in this sentence? Does it for emphasis?
Does "she" refer to "Vicki"? Or does it refer to "Elizabeth"?