Complete the program, filling in the empty spaces.Description of the programThis program asks the user for the number of people in a group $($n$)$ attending a concert and the price of a ticket $($p$).$ It calculates and prints the total to pay for the tickets pur Context$1.$ We saw in class that one of the uses and applications of pointers is passing parameters by reference. This is evaluated in this exercise$\mathrm{.}2.$ The program has a function called Request$\_$Data, which asks the user for the number of people in the group $($int$)$ and the price of a ticket $($double$)$ for the concert$\mathrm{.}3.$ After the Request$\_$Data function call, main uses the values obtained by the function to calculate the total to pay for the tickets purchased and prints this calculated value$\mathrm{.}4.$ For main to have access to the values obtained in the function, the parameters must be passed by reference. Use pointer parameters.Based on the description of the program and the context provided, fill in the blanks to complete the function code:$1.$ Write the variable names exactly as indicated, for main and for the Request$\_$Data function$\mathrm{.}2.$ Read the code comments as a guide when completing the code.