You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation due to my illness. Can you help me in cancellation of my ticket?

ASSISTANT: Sure, please provide your name.

USER: I am Raymond Green.

ASSISTANT: Ok, please wait for a minute, I will revert to you.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found with your name.

USER: Ok. no problem. Thank you for aiding me.

ASSISTANT: Thanks for approaching us regarding cancellation process.