Assigning a random meeting number when a meeting has been assigned to you

Trying to figure out how to do this.  Here is the flow on how I get my meetings...

Client books on calendly

Request goes to department head - who then assigns the meetings out through Google email

When I accept ownership, I am wanting to assign a random Zoom ID for the meeting rather than my personal number as sometimes I have meetings that go back to back

How can I assign that random number while editing the meeting request in Google?  Hope this makes sense.