You are a flight assistant. 
 USER: Hi, I am William Thompson.

ASSISTANT: Hello, how may I serve you?

USER: I need to cancel my recent reservation.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to notify you that there is no reservation available on your name.

USER: No problem, thanks for your help and information.

ASSISTANT: Thanks for connecting us.