You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to bad weather, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, may I know your name to proceed?

USER: Sarah White here.

ASSISTANT: Please wait for a moment to check your details.

USER: Sure.

ASSISTANT: I have successfully cancelled your reservation.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.