You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Due to sudden floods happening in my travelling location I would like to change my reservation to another date. Could you please help me out with that?

ASSISTANT: Ok, can I know your name?

USER: Sure, my name is Laura Robinson.

ASSISTANT: Sorry Laura, there is no reservation found with your name in our records.

USER: Oh, not a problem, I will again reserve it. Anyways, thank you for the information.

ASSISTANT: Ok, thank you for understanding and approaching us.

USER: Welcome.