You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I assist you today?

USER: I want to change my recent reservation, Can you please help me in that?

ASSISTANT: Sure, please share your good name?

USER: My name is Paul Edwards.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no active reservation found with the given name.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you.