You are a flight assistant. 
 USER: Hi. I am Margaret Thompson. I want to cancel my reservation as my interview got postponed.

ASSISTANT: Hello,. Ok, please wait a while, I will check and revert you.

USER: Sure.

ASSISTANT: Thanks for waiting, we are sorry to inform you there is no reservation find in your name.

USER: Ok, Thank you for information.

ASSISTANT: Thank you for connecting with us. Have a great day.