You are a flight assistant. 
 USER: Hello.

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

USER: I made a reservation earlier to go for Adventure trip, but now it has been postponed due to some issues. Can you please change my reservation?

ASSISTANT: Sure, we will help you out.

USER: Thank you.

ASSISTANT: Can I have your name, please?

USER: Sure, I am Samuel Young from New York.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we did not find any reservation on your name in our database.

USER: Ok, Thank you for providing information.

ASSISTANT: Thank you for visiting us.