You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you now?

USER: My meeting got postponed as of now, so I need to change my existing reservation. Can you help me in that?

ASSISTANT: Sure, I am here to help you out with that. May I know your good name please?

USER: Sure, the ticket has been reserved on the name Gary Moore.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure, I will wait for your response.

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

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thanks for consulting us, wish you a good day.