You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Due to the sudden change in climate, my badminton tournament got cancelled, so  please change my existing reservation.

ASSISTANT: Sure,may I know your name to check whether your reservation is available or not?

USER: Sure, Benjamin Young here.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.