You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Emily Lopez. I want to cancel my reservation.

ASSISTANT: Sure, please wait a moment I will check the reservation in your name and revert you.

USER: Ok.

ASSISTANT: We are very sorry to notify you that there is no reservation found in your name.

USER: Ok, not an issue. Thanks for the information.

ASSISTANT: Thanks for choosing us, have a nice day.