You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please change my reservation due to postponed of my holiday?

ASSISTANT: Sure, we are here to help you. Kindly mention your name to proceed?

USER: Samantha Phillips is my name.

ASSISTANT: Ok, please hold a moment.

USER: Sure.

ASSISTANT: Thanks for your time, unfortunately no reservation found on your name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for picking us.