You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Pamela White here. Can you cancel my flight reservation? I was going to deliver a speech on present financial crisis in the state of California but unfortunately it got postponed.

ASSISTANT: Sure, I will help you with this.

USER: Ok.

ASSISTANT: Wait a moment please, let me check the reservation status and get back to you. Pamela White, there is no active reservation found with your name in our database to cancel it.

USER: Ok, not a problem. Thanks for your help.

ASSISTANT: Thank you for contacting us.