You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to change my recent my reservation, can you help me in doing that?

ASSISTANT: Sure, I am happy to help you. Can I have your good name to proceed further?

USER: I am Jeffrey Taylor.

ASSISTANT: Sorry, there is no active reservation on your name in our data.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for availing us.