You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Eric Wright. I want to change my recent reservation, can you please help me with it?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Eric, there no reservation found on your name to make change.

USER: Its ok, thank you for your information.

ASSISTANT: Thank you.