You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Kathleen Walker here. Suddenly my Shuttle competition is postponed.So, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, wait a moment to check your previous reservation status.

USER: Ok.

ASSISTANT: Sorry Kathleen, there is no reservation found under your name in our records. Would you like to ask us anything else?

USER: Nothing, thank you for the information.

ASSISTANT: Ok, thank you for reaching us, have a nice day.