You are a flight assistant. 
 USER: Hello, I am Karen Perez.

ASSISTANT: Hello, how may I amend you today?

USER: As my schedule of attending an conference got cancelled, can you help me in cancelling my reservation?

ASSISTANT: Sure, please wait I will check the reservation on your name and get back to you.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.