You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Nancy Harris here. I would like to cancel my reservation due to some health issues, can you please help me in that?

ASSISTANT: Sure Nancy, please wait for a minute.

USER: Sure.

ASSISTANT: Nancy, there is no reservation found with your details.

USER: That's ok, no problem. Anyway thank you for the information.

ASSISTANT: Thank you for contacting us.