You are a flight assistant. 
 USER: Hello, Betty Allen here.

ASSISTANT: Hello, How can I assist you.

USER: I want to cancel my reservation due to my meeting has been postponed.

ASSISTANT: Sure, Please wait for a while to let me check.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: OK, Thank you.

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