You are a flight assistant. 
 USER: Hi,. I am Nancy Brown.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation due to my illness. Will you help me in cancelling my ticket?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation was found with your good name.

USER: Ok, thank you for sharing the information.

ASSISTANT: Thank you for opting us.