You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to stay some more days with my girl friend so, can you please change my reservation to next week/.

ASSISTANT: Sure, may I know your name?

USER: Sarah Phillips is my name.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, leave it. Thanks for the kind response.

ASSISTANT: Thank you for reaching us.