You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Virginia Phillips. As my visiting to Detroit got postponed, As there is heavy protest is going on there. Can you help me to cancel my recent reservation?

ASSISTANT: Sure,we are here to help you. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting. We didn't found any reservation by this name.

USER: Ok, not an issue. Thanks for your effort.

ASSISTANT: Thank you for choosing us.