Booking Guests for a Podcast

I am looking for someone who can book guests for a podcast.

It is a very personal podcast. Therefore you should not come across very "business" but very friendly and persistent.

Most of the contacts are on instagram. Please send me a link to your instagram (should be creative/friendly).

Please answer me 2 short questions:
Imagine you are sending a message to book an author on Instagram and do not get a reaction.

1. Tell me 5 ways you would try to get a response from this person?

2. If you would comment on their last post, what would you write so they contact you?