You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Due to the sudden change in climate, my badminton tournament has been cancelled. So I have a request to you to cancel my existing reservation?

ASSISTANT: Sure, can I have your name to check the details.

USER: Sure, Edward Taylor here.

ASSISTANT: OK, please wait a minute.

USER: Sure.

ASSISTANT: There is no reservation with your name.

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

ASSISTANT: Thank you for reaching us.