You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to cancel my reservation as exams got cancelled, can you please help me?

ASSISTANT: Sure, I will help you. Please provide me your name for checking your reservation status.

USER: I am Kimberly Thomas.

ASSISTANT: Thomas, please wait for a while.

USER: Ok.

ASSISTANT: Sorry Thomas, 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.