You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, may I know your name please to check the reservation status?

USER: My name is Mary Miller.

ASSISTANT: Mary, your ticket is successfully cancelled.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for utilising our services.