A Travel Booking System offers different discounts based on the traveler's age and

booking type. The discount rules are as follows: Senior citizens $($age $60$ and above$)$

receive a flat discount of $15\%$ on all bookings; students $($age $18-25)$ get a $10\%$ discount

on vacation package bookings; for group bookings of $5$ or more people, a group discount

of $20\%$ is applied; all other bookings receive a standard $5\%$ discount.

a$)$ Draw Data Flow Diagrams $($from Context$-$Level to Level $2)$ that represent the

current travel booking system.

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