Instructions

The attached file "airfares.txt$"$ contains the records of airfares posted by an airline for flights

between Canadian cities. Each record is placed on a separate line, and consists of comma

separated fields containing $($from left to right$)$ the date$/$time of the flight, the origin city, the

destination city, and the airfare. Given the file "airfares.txt$",$ write a program called

airfares$\_$deals.py to find and display the pairs of cities and the corresponding dates$/$times of

flights with to the second lowest airfare