You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: I need some changes in my reservation because earlier I have given some wrong details so please help me with that.

ASSISTANT: Sure, may I know your name please?

USER: Sure, please verify the reservation with the name of Anthony Adams.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time to check.

ASSISTANT: Sorry Anthony, there is no reservation found on your name.

USER: Oh! May be booking is not done properly due to server issue.

ASSISTANT: Ok.

USER: Anyway, thank you for your valuable time.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Most welcome.