You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: My name is Amanda Wilson, I want to change my reservation as my plan to visit Washington for vacation is postponed. Can you help me to change my reservation?

ASSISTANT: Sure, we are here to help you to change it. Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Thank you for the information.

ASSISTANT: Thank you for opting our service.