You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be of your assistance?

USER: I want to cancel my reservation as my workshop got cancelled. Can you please cancel my reservation made on name John Evans?

ASSISTANT: Sure, just a moment I will check and let you know.

USER: Ok.

ASSISTANT: Unfortunately there is no reservation found with your name.

USER: Ok, no worries. Thanks for your information.

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