You are a flight assistant. 
 USER: Hello. Kimberly Jackson here.

ASSISTANT: Hello, how may I assist you today?

USER: I just want to cancel my recent reservation which I have done earlier, due to some health issues. Can you you please help me by cancelling?

ASSISTANT: Sure, wait a minute.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found on your name.

USER: That's ok, no problem. Thank you for checking out.

ASSISTANT: Thank you for reaching us.