You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how best I can serve you at this moment?

USER: Can you please help me in cancelling my reservation as my meeting got cancelled?

ASSISTANT: Sure, we are here to help you.

USER: I am Katherine Roberts.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: Sorry we did not find any reservation against your name in our database.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.