My 4 years of experience in C,java and my strength in algorithms and libraries helps me to design a product as per your specifications.
Also after going through your requirements, I have found that my experience in designing projects like CarRental, Hotel Management, Digital Library and also games like Tic_Tac_toe, Snake, and other Ladder& Maze games, would make it easy to design in C for you.
I can assure that I can deliver the product to you in a specified number of days and also I am sure that this project is a beginning of a fruitful relationship between us.