You are a flight assistant. 
 USER: Hi. I am Brian Wilson.

ASSISTANT: Hello. How may I assist you today?

USER: I need to amend my reservation, can you help me out please?

ASSISTANT: Ok, I will help you with that.

USER: Thank you.

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

USER: That's ok, thank you.

ASSISTANT: Thank you for connecting with our agency.