You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Due to some health issue, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, please provide me your name.

USER: Sure, I am Carol Williams.

ASSISTANT: Please allow me a moment to check for your status.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry, there is no active reservation have been found under your name in our database to cancel it.

USER: Ok, Thank you.

ASSISTANT: Thank you for reaching us.