You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am US secretary of state I was supposed to do a meeting with my group which was originally scheduled to have a press conference next week. But unfortunately it got cancelled. My name is Samantha Mitchell. Please cancel my plane ticket?

ASSISTANT: Ok, wait a moment. Mitchell, there is no reservation found under your name to cancel.

USER: Thanks for your information.

ASSISTANT: Welcome. Thank you for choosing us.