You are a flight assistant. 
 USER: Hello, I am Mary Moore.

ASSISTANT: Hello, how can I assist you?

USER: I just want to cancel my recent reservation, due to my interview has been cancelled. Can you help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your name.

USER: Ok, no problem.

ASSISTANT: Ok, thanks for choosing us.

USER: Thanks for your help.