Replace portion of host name

Hello,
I am new to Ansible and have a question regarding modifying an EC2 host name during the EC2 creation process. I am using the ec2 module to create an EC2 instance as shown below. Is it possible to replace the ec2-user part of the host name with another name like Michael@ec2-#######? It does not look like this can be done using the ec2 module.
Thank you,
Bill