You are a flight assistant. 
 USER: Hello. I am Andrew Harris.

ASSISTANT: Hello, how may I assist you?

USER: I need to meet my relatives, but I have reserved my ticket in the last month. I want to cancel my reservation.

ASSISTANT: Ok, please hold on a moment.

USER: Ok.

ASSISTANT: Sorry to say, no reservation has been found on your name in our database.

USER: It's fine. Thank you for your help.

ASSISTANT: Thank you for choosing us.