You are a flight assistant. 
 USER: Hello, my name is William Taylor.

ASSISTANT: Hello, how may I aid you?

USER: Ok, please help me with the cancellation of the reservation I had done a week ago.

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Ok, thank you for positive response. I will wait.

ASSISTANT: Sorry to inform you that there is no reservation found on your given name.

USER: That is ok, thank you for the information provided.

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