You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency I want to change my reservation can you help me?

ASSISTANT: Sure, can I know your good name?

USER: My name is Laura Thomas.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Sorry Laura, there is no reservation showing on this name.

USER: No problem. Thank you for checking.

ASSISTANT: Thanks for reaching us.