PowerApp + ServiceNow connector

Question

Hello Team,

I have a specific scenario I would like to achieve with Power platform tools and would appreciate some inputs from the community:

There are Device Repair requests raised by users via our helpdesk for our organization. We are currently manually sending an email to the Device vendors to process each device requests by providing them with basic details like, Name and Email ID of the end-user and a short issue summary of the repair request. The vendor then processes it and reaches out directly to the end-user to setup a repair session. The only task from an admin standpoint is to send an email to the device vendor.

I was thinking of building something like below:

1. I would like to setup a connector between PowerApp and ServiceNow
2. My ServiceNow instance has let's say 4 fields - Incident Number, Name of Caller, Email ID of the caller and Issue Description.
3. I would like to design my PowerApp form in a way like it should have 4 field - Incident Number, Name of the end-user, Email of the end-user and Issue Description. When admin user enters the Incident Number, the "Name of caller" and "Email of caller" should pre-populate via ServiceNow connector. I do not want Issue Description to pre-populate as admin would like to edit and customize that field.
4. After admin enters the Issue Description part, there should be a Send button for the PowerApp which will shoot an email to the device vendor DL(with few others in CC). The email should be sent via the admin user account who pushed the "Send" button.

I would like the authentication to PowerApp to be done via corp AAD account.

Can someone please help in providing me some guidance on the above