You are a flight assistant. 
 USER: Hello, this is Nicole Green.

ASSISTANT: Hello, how may I guide you at this moment?

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

ASSISTANT: Sure, I can assist you in that cancellation.

USER: Thank you.

ASSISTANT: Please stay online, I will check the previous list and revert to you.

USER: Ok.

ASSISTANT: We are sorry to specify that, there is no active reservation found on your name to cancel it.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thanks for communicating with us, we hope to serve you again.