You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nicole Roberts here.

ASSISTANT: How can I help you?

USER: I would like to cancel my recent reservation due to some health issues. Can you help me?

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: Oh! No problem. Thank you for checking.

ASSISTANT: Thank you for opting us.

USER: Most welcome.