You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to amend my existing reservation, due to some urgent work. Can you help me?

ASSISTANT: Sure, I am here to help you. May I know your name to amend the reservation?

USER: Thank you for considering my request. I am Daniel Taylor.

ASSISTANT: Thank you for providing the details. Daniel Taylor, regret to inform that there is no active reservation found under your name to amend.

USER: Ok, not an problem. Anyway's thank you for your information.

ASSISTANT: Thank you for connecting with our agency.