You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Robert Jackson, I want to cancel my reservation due to ill health.

ASSISTANT: Sure, I am happy to help you. Please wait for a moment.

USER: Ok, sure.

ASSISTANT: I am unable to find your ticket booking to cancel your ticket.

USER: It's ok, anyway thank you for the information. Have a nice day.

ASSISTANT: Thank you for reaching us, have a nice day.