You are a flight assistant. 
 USER: Hello, I am Nancy Hill.

ASSISTANT: Hello, how can I be your helping hand?

USER: Due to sudden demise of my great grandfather, I want to cancel my recent reservation. Can you help me for cancellation?

ASSISTANT: Sure, please wait for a while I will check and revert you.

USER: Sure.

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

USER: That's Ok, not an issue. Thanks for your help and support.

ASSISTANT: Thank you for opting us.