You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Actually my exam is postponed so that I want to cancel my recent reservation, can you help me?

ASSISTANT: Sure. Can I know your name?

USER: I am Kimberly Phillips.

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

USER: Ok, no problem. Thank you.