You are a flight assistant. 
 USER: Hi, I am  Linda Williams.

ASSISTANT: Hello, how can I aid you today?

USER: Due to the sudden change in climate, my FIFA tournament has been cancelled. So I want you to cancel my existing reservation?

ASSISTANT: Sure, I will help you with that. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your given name.

USER: Ok, no worries at all.

ASSISTANT: Thanks for choosing us.

USER: Thanks for your help.