Launch one to one chat with userDetail

 ALUserService * userService = [ALUserService new ];
        
[userService getUserDetail:userId withCompletion:^(ALContact *contact) {
   
   ALChatManager * chatManager = [[ALChatManager alloc] init];
   [chatManager launchChatForUserWithDisplayName:userId withGroupId:nil
                                        andwithDisplayName:nil andFromViewController:self];

}];