You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I would like to change my recent reservation, will you help me with that?

ASSISTANT: Sure, I am here to help you with it.

USER: Thank you for accepting my request.

ASSISTANT: Can you please share your name?

USER: Myself Richard Hill.

ASSISTANT: Please wait while I find your current reservation status.

USER: Ok, I will wait.

ASSISTANT: We are unable to find your reservation in our system.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you.