You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Dorothy Young and I want to cancel my recent reservation due to my board meeting got preponed.

ASSISTANT: Sure, wait for a couple of minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, there are no reservation matches with your name.

USER: Thank you for your response.

ASSISTANT: Thank you for availing us.