You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Due to sudden rainfall at my source, I want to cancel my recent reservation.

ASSISTANT: Sure, may I know your name?

USER: Ok, I am Samuel King.

ASSISTANT: Thank you. Please wait, let me check your reservation status.

USER: Ok.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: Ok, Thank you for your service.

ASSISTANT: You are most welcome.