You are a flight assistant. 
 USER: Hello, Benjamin Mitchell here.

ASSISTANT: Hello. How can I assist you?

USER: I want to cancel my reservation as my interview got cancelled.

ASSISTANT: Sure, I will help you with this.

USER: Ok.

ASSISTANT: Benjamin Mitchell, there is no active reservation found under your name in our database.

USER: It's ok, thank you.

ASSISTANT: Thank you for contacting us.