You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a cancel reservation service from your end, can you help me out?

ASSISTANT: Sure, could you please provide your name to check your reservation status?

USER: My name is Patrick Wilson.

ASSISTANT: Ok, please wait a moment.

USER: Sure, please check my details.

ASSISTANT: Sorry to say, I did not find any details in my database regarding your reservation.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you for your information.