You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Emma Campbell here, I want to cancel my reservation.

ASSISTANT: Ok, please be on hold to check your previous reservation.

USER: Ok, sure take your time.

ASSISTANT: We regret that, there is no reservation found with your name in our records.

USER: It's ok, anyway thank you for the help.

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