You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please change my recent reservation? As my planned trip has been postponed.

ASSISTANT: Sure, please share your good name.

USER: My name is Richard Evans.

ASSISTANT: Please stand by.

USER: Sure, I'll wait for your response.

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

USER: Oh! That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you.