Telethon make user reply to the sent message

I'm writing a telethon bot that should do the following:

1. Bot listens to the messages sent by users in the channel.
2. To the message '/start', bot greets the user with 'Hi {username}!'
3. Bot makes the user auto reply to the message sent in step #2 (as if the user clicked the reply button of the message received from bot)

So far, I tried this code.

from telethon import TelegramClient, events


api_id = 'api_id'
api_hash = 'api_hash'
channel_id = 'channel_id'


client = TelegramClient("session", api_id, api_hash)
@client.on(events.NewMessage(chats=channel_id, pattern="/start"))
async def handler(event):
    sender = await event.get_sender()
    response = f"Hi [{sender.first_name}](tg://user?id={sender.id})!"
    await event.respond(response)
    await event.click(0)


client.start()
client.run_until_disconnected()

Code doesn't give any errors, but the button is not clicked either.

from telethon import TelegramClient, events
from telethon.tl.custom.button import Button

api_id = 'api_id'
api_hash = 'api_hash'
bot_token = 'bot_token'
bot = TelegramClient("bot", api_id, api_hash).start(bot_token=bot_token)

async def main():
    async with bot:

        @bot.on(events.NewMessage(pattern="/start"))
        async def handler(event):
            sender = await event.get_sender()
            response = f"Hi [{sender.first_name}](tg://user?id={sender.id})!"
            await event.respond(response, buttons=Button.force_reply("some text"))

        await bot.run_until_disconnected()