You are a flight assistant. 
 USER: Hi, my name is David Wilson.

ASSISTANT: Hello, how may I serve you today?

USER: Due to the sudden change in climate my Soccer match has been cancelled. So I had a request to you to cancel my existing reservation.

ASSISTANT: Sure. Please wait, I will check the reservation with your name to cancel it.

USER: Sure.

ASSISTANT: Thank you for waiting. Unfortunately, There is no reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thank you for availing us, Have a great day ahead.

USER: I appreciate your service.