You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation due to some health issue. Can you help me?

ASSISTANT: Sure, I am glad to help you in flight ticket cancellation process.

USER: Thank you.

ASSISTANT: May I know your name for checking your reservation status?

USER: Yes, I am Janet Collins.

ASSISTANT: Ok, I have checked with your name in our portal but it is showing that there is no booking done on the name that you have mentioned us for checking.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: You are most welcome.