You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to change my reservation because my business meeting has been postponed.

ASSISTANT: Sure, I am here to help you. May I know your name please to check the status?

USER: Sure, my name is Raymond Moore.

ASSISTANT: Please give me a minute.

USER: Ok.

ASSISTANT: Moore, there is no reservation found with your details.

USER: It's fine, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for checking.