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: Ok, please can I know your name to proceed?

USER: Sure, I am Angela Harris.

ASSISTANT: Ok, please can you wait a moment I will check?

USER: Sure.

ASSISTANT: Ok, thank you for waiting. Sorry, there are no reservations been found on your name to cancel.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for choosing our agency.