You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: 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?

ASSISTANT: Ok, allow me to check with your previous booking. May I know your good name?

USER: Thank you.  Please check my ticket status with name Carolyn Hall.

ASSISTANT: Your reservation is successfully cancelled. Thank you for choosing our services.

USER: Thank you for your help.

ASSISTANT: Have a nice day.

USER: You are welcome.