I've got little experience with this stuff and I don't think it is flirting but the response seemed overly friendly at best and I wasn't expecting it. I asked this girl for a link to her zoom meeting for tonight and she responded "Hey there! Here you go :) " Is there anything to read into the smiley face and 'hey there'? Normally I use 'hey there' for potential love interests. But I'm probably reading too much into it.