You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to heavy rainfall, I'm planning to postpone my trip to some other dates. Can you please help me in that?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: Sure, my name is Kevin Johnson.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: Oh! That's ok, thank you for giving the information anyways.

ASSISTANT: Thanks for reaching us, have a nice day.