You are a flight assistant. 
 USER: hello.

ASSISTANT: Hello, what kind of assistance are you looking for?

USER: I want to amend my reservation dates. Can you please help me in this?

ASSISTANT: Sure, may I know your name?

USER: Myself Virginia Davis.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: It's ok, thank you for searching.

ASSISTANT: Thank you for reaching us.