Write a Python program comprising methods/functions to add or delete a passenger

Q. FLYAIR Airlines has grown big and touches more than 140 destinations worldwide, offering excellent service to its passengers. To provide latest information to its customers at the click of a button, the company offers computerized processing of passenger details.

Write a Python program comprising methods / functions to add or delete a passenger's name from the list of passengers, considering them as insert and delete operations of the Queue data structure.

Answer :-

def INSERT (Q):
    pname = input("Enter the name of the passenger to be added : ")
    Q.append(pname)

def DEL (Q):
    if Q != [] :
        pname = Q.pop(0)
        print ("Passenger data deleted ")
    else:
        print ("Empty queue. No Passenger details")

def SHOW (a) :
    print (Q)

Q = []
while True:
    Option = input ("I:INSERT D:DEL S:SHOW E:EXIT  ")
    if Option == "I":
        INSERT (Q)
    elif Option == "D":
        DEL (Q) 
    elif Option == "S":
        SHOW (Q)
    elif Option == "E":
        print ("Happy and Safe Journey")
        break
    else:
        print ("Wrong Option")

Output :-

I:INSERT D:DEL S:SHOW E:EXIT  I
Enter the name of the passenger to be added : RAMAN
I:INSERT D:DEL S:SHOW E:EXIT  I
Enter the name of the passenger to be added : RAHUL
I:INSERT D:DEL S:SHOW E:EXIT  I
Enter the name of the passenger to be added : RAJESH
I:INSERT D:DEL S:SHOW E:EXIT  S
['RAMAN', 'RAHUL', 'RAJESH']
I:INSERT D:DEL S:SHOW E:EXIT  D
Passenger data deleted
I:INSERT D:DEL S:SHOW E:EXIT  S
['RAHUL', 'RAJESH']
I:INSERT D:DEL S:SHOW E:EXIT  E
Happy and Safe Journey
>>>