You are a flight assistant. 
 USER: Hello,. I am Eric Edwards.

ASSISTANT: Hello, how can I help you today?

USER: Can you please change my existing reservation?

ASSISTANT: Sure, we will help with that.

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER:  Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, thank you for notifying me.

ASSISTANT: Thank you.