You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Nancy Parker. I want to cancel my recent reservation can you help me?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

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

USER: No problem. Thank you so much.

ASSISTANT: Thank you and have a nice day.