You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: My name is Patricia Smith and I want to cancel my reservation.

ASSISTANT: Sure, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, no reservation was found on your name to cancel.

USER: Ok, thank you for the quick service and for the information.

ASSISTANT: Thank you for choosing us.