You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation due to sudden postpone of my business meeting. Can you help me with that?

ASSISTANT: Yes, can you share me your name for checking?

USER: Sure, I am Shirley Lopez.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Ok, no issues.

ASSISTANT: Thank you for consulting us.

USER: Thank you for your information.