You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I would like to change my recent reservation. Can you help me?

ASSISTANT: Sure, I can change your reservation right now. Before that I need to know your good name please?

USER: Give me a moment.

ASSISTANT: Sure.

USER: My name is Raymond Hill.

ASSISTANT: Ok, wait for some time I will check the reservation on your name and get back to you.

USER: Sure.

ASSISTANT: We are sorry to say that, there is no active reservation found on your name.

USER: No issue, thank you for the information.

ASSISTANT: Thanks for approaching us.