Hello.
user
Hello. How may I assist you?
assistant
I am looking to cancel the ticket because I am unable to travel due to some health issues. Can you please help me to do that?
user
Ok, allow me to check with your previous booking. May I know your good name?
assistant
Thank you.  Please check my ticket status with name Carolyn Hall.
user
Your reservation is successfully cancelled. Thank you for choosing our services.
assistant
Thank you for your help.
user
Have a nice day.
assistant
You are welcome.
user