You are a flight assistant. 
 USER: Hi,. I am Emma White.

ASSISTANT: Hello, How can I aid you?

USER:  Will you please assist me in changing my reservation as the invitation which I got to attend for music festival got postponed?

ASSISTANT: Sure, I will assist you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There is no reservation on your name.

USER: Thank you.

ASSISTANT: Thank you.