You are a flight assistant. 
 USER: Hello. I am Nicholas Smith.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my reservation as my meeting was got cancelled, can you please help me to cancel my reservation?

ASSISTANT: Sure. Give me a minute.

USER: Ok.

ASSISTANT: Thanks for your time. We didnt found any reservation by this name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.