You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Due to some personal issues, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Thank you.

ASSISTANT: Ok, may I know your name?

USER: My name is Larry Hall.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

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

ASSISTANT: Welcome, have a nice day.