You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: My football match was cancelled and I want to change my reservation can you help me?

ASSISTANT: Ok, may I know your name please?

USER: My name is Kathleen Allen.

ASSISTANT: Sorry Allen, unfortunately there is no reservation found under your name.

USER: No problem. Thank you for checking.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Welcome.