You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: My name is Emma Campbell, I want to cancel my recent reservation due to cancel of my conference.

ASSISTANT: Ok, please wait for a while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: No problem, thanks for your service.

ASSISTANT: Thank you for reaching us, we hope see you again.