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

ASSISTANT: Hello, how can I serve you?

USER: I just want to cancel my reservation as my exams got postponed, can you please help me out?

ASSISTANT: Sure, please wait a moment I will check and let you know.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.