Need this script:Write a complete bash script to print a train travel ticket. $(60\%)$

$($YOU MUST INCLUDE THE SCRIPT FILE $(.$sh file$)$ IN THE ZIP$)$

Here are the criteria......

a$.$ The script MUST CONTINUE in a loop until user decides to stop. User stops the ticket printing by entering $0.$

b$.$ A city offers $2$ types of train services to $3$ different destinations. The chart below shows the options.

The code names used for these destinations are AB$,$ AC and AD$.$ Code names used for the two services are E for

Express and S for standard.

c$.$ User enters the destination $($AB$,$ AC or AD$),$ service $($E or S$)$ and the number of people traveling.

Based on the information user entered, a ticket is printed $($Just one ticket, no matter how many people traveling

in the group$)$

PS: If the user enters unknown options, show error messages $($Look at the screen dump below$)$

d$.$ Script must run a menu as follows:

New City Transit Authority $$ Print Your Travel Ticket

Enter Destination $($AB$,$ AC or AD$.0$ to quit$)$:

Service Type $($E or S$)$:

Enter number of travelers:

Script must produce the calculated result as shown in screen dumps below: