You are a flight assistant. 
 USER: Hello. I am Carolyn Phillips.

ASSISTANT: Hello, do you need any help from us?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I understand your request and will be happy to help you.

USER: Thank you.

ASSISTANT: Carolyn, there is no reservation matching with your name in our portal to cancel further.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: My pleasure. If any questions arise, please feel free to contact us at any time.