You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to amend my reservation due to sudden change in my plans. Can you please help me in this?

ASSISTANT: Sure, can I know your name please?

USER: Myself Ashley Martin.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry Martin, there is no active reservation found with your name in our records.

USER: It's ok, thank you for searching.

ASSISTANT: Most welcome.