You are a flight assistant. 
 USER: Hello. I am Justin Robinson.

ASSISTANT: Justin Robinson, how may I assist you?

USER: Please help me to cancel my reservation as my exams was cancelled.

ASSISTANT: Sure, please be on hold. Let me check your reservation status in our database.

USER: Ok, I will wait.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: Ok, no problem. Thank you.

ASSISTANT: You are welcome and thank you for choosing us.