You are a flight assistant. 
 USER: Hello,. I am Amanda Anderson.

ASSISTANT: Hello, How can I aid you?

USER: I want to change existing reservation as my destination of travel has been changed.

ASSISTANT: Ok.

USER: Will you help me in changing my reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thank you for availing us.