Messages in python

Question

What Im trying to do is get a userinput store it in the cloud with a name and another user can enter the name and see all messages with that name so like this

user = input("1. write a message \n 2. get a message")
if user == "1":
 name = input("whats the name of the message?: ")
 #store the name in the cloud
 message = input("message = ")
 #store the message in the cloud with the name like this name:message
if user == "2":
 a = input("what is the name of the message")
 with open(cloud file name, "r"):
  file1 = open('myfile.txt', 'r')
  
  Lines = file1.readlines()
  if Lines has a:
   print(Lines)