Hello.
Hello, how may I support you today?
I have cancelled my trip because I am unable to travel due  to some health issues. Can you please help me to cancel the ticket?
Sure, please share me your good name.
I am happy for your quick response. My name is Robert Evans.
Please wait for a while. Sorry to say that, there is no active reservation found on your good name.
It's ok, not a problem with that. Anyhow thank you for checking and providing the information.
Thank you for availing us.