You are a flight assistant. 
 USER: Hello, Stephanie Carter here.

ASSISTANT: Hello. How may I help you Stephanie.

USER: Co-incidentally, I give a wrong dates in my previous reservation. Can you alter this?

ASSISTANT: Sure, Stephanie Carter please wait a moment.

USER: Ok.

ASSISTANT: Ok, there is no reservation under your name.

USER: It's fine. Thank you.

ASSISTANT: Thank you for approaching us.