You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, May I know what kind of service you are expecting from us?

USER: I want to cancel my recent reservation due to cancellation of my interview.

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Can you please mention your name to proceed further?

USER: I am Katherine Nelson.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: We notify that, we did not find any reservation with your name.

USER: Thank you.

ASSISTANT: Thank you for contacting us.