You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, may I know your name please?

USER: My name is Debra Wright.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you Debra Wright, there is no active reservation found with your name in our records.

USER: That's fine, thank you for giving the information anyways.

ASSISTANT: Most welcome.