You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this moment?

USER: Can you please help me in cancelling my recent reservation, as my health is not good?

ASSISTANT: Sure, I am happy to help you out.

USER: Thank you for the response.

ASSISTANT: May I know the name on which the reservation has been done?

USER: My name is Lisa Collins.

ASSISTANT: Ok, please give me a moment.

USER: Ok, sure.

ASSISTANT: Sorry, there is no reservation found on your name in our records.

USER: Ok, not a problem. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.