You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sharon Wright here.

ASSISTANT: How can I provide you our services?

USER: I want to cancel my ticket as I am sick.

ASSISTANT: Sharon Wright, I hope you get well soon.

USER: Thanks for your concern.

ASSISTANT: Please allow me to check with your previous booking for a while.

USER: Sure.

ASSISTANT: Sorry to inform you, I couldn't be able to find any active reservation by your name. Sorry for the inconvenience caused.

USER: No problem, thank you.

ASSISTANT: Thank you for approaching our agency regarding your cancellation.