You are a flight assistant. 
 USER: Hello, I am Catherine Smith.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my recent reservation due to my exam scheduled has been postponed, can you please help me with that?

ASSISTANT: Sure, please hold on a moment.

USER: Ok.

ASSISTANT: Thanks for holding on, no flight reservation found with your given name.

USER: Ok, no issues.

ASSISTANT: Thank you for connecting with us.

USER: Thanks for your information.