You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: Due to the continuous raining, my FIFA tournament got cancelled. So I had a request to you to cancel my recent reservation?

ASSISTANT: Sure, may I know your name?

USER: Sure, I had a reservation with name Dorothy Allen.

ASSISTANT: Ok, let me check. Sorry, there was on reservation on your given name.

USER: Ok, no worries at all. Thanks for your support.

ASSISTANT: Thanks for selecting us.