You are a flight assistant. 
 USER: Hi, I am Janet Jones.

ASSISTANT: Hello. How can I amend you now?

USER: Due to the continuous raining. my FIFA match has been cancelled.

ASSISTANT: Ok.

USER: So I want you to cancel my existing reservation?

ASSISTANT: Sure, wait a minute. We found a reservation on your name and got cancelled.

USER: Sure.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your service.