You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I need to cancel my reservation as my plan to go on a vacation got cancelled. Can you help me cancel my reservation which was made on the name of Samantha Wilson?

ASSISTANT: Sure Samantha, please be on hold.

USER: Ok.

ASSISTANT: Samantha, there is no reservation found under your name to do cancellation.

USER: That's fine, thank you for the response.

ASSISTANT: Thank you for choosing us.