I want to create a new ticket when email type is reply/forward.

[ShobharaniK]

When a person replies to a mail which has already created a ticket in servicenow using inbound action, I want to create a new ticket for that reply mail. 
In inbound action, when I choose email type as reply and modified some scripts, new ticket got created but the email got captured in the previous ticket.

when the inbound action email type is selected as new, it ignores the inbound action saying that the email type is reply and inbound action type is new. 

[Mark Manders]

Why? This goes against every kind of logic. The fact that it is a reply, means that it is related to the ticket already in the system. The entire 'watermark' logic within ServiceNow is created because of this. This will make a very bad user experience. 

The OOB watermark functionality takes care of attaching the email to the original ticket (as it should!!). And you can't handle a reply as a type new because it's simply not a new email. It's a reply.

Please explain your business use case, because it doesn't make sense (also, why do you expect a reply to be handled as if it is a 'new' email)?