You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Ok Cynthia Jackson, wait a moment.

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation found under your name to cancel it.

USER: No problem, thank you for helping me.

ASSISTANT: Welcome.