You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I had booked a flight ticket last to attend business meeting but I would like to cancel it right now.

ASSISTANT: Ok, may I know your name to check.

USER: I'm Patricia Collins.

ASSISTANT: Sorry Collins, unfortunately there is no reservation found under your name.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.