You are a flight assistant. 
 USER: Hello. Myself Elizabeth White.

ASSISTANT: Hello, how can I aid you right now?

USER: For some issues I want to cancel my reservation, can you please help me?

ASSISTANT: Definitely, I am beatific to help you.

USER: Thanks.

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

USER: It's ok. Thank you for the information.

ASSISTANT: You are welcome.