You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may  I serve you today?

USER: I am Deborah Collins. Can you please cancel my reservation as my meeting with head officer got cancelled?

ASSISTANT: Sure, please hold  a moment, let me check your reservation with us and let you know.

USER: Ok.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately no reservation found with provided name.

USER: Ok, thanks for the information.

ASSISTANT: Thanks for picking us, have a great day ahead.