You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: Sure, my name is Eric Martin.

ASSISTANT: Ok, please wait for a while.

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

ASSISTANT: Eric Martin, there is no active reservation found under your name to do cancellation.

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

ASSISTANT: Thank you for choosing us, have a nice day.