You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any assistance from us?

USER: Due to floods in my destination place, I cannot complete my trip. So can you please cancel my previous reservation?

ASSISTANT: Sure, please tell me your name.

USER: I have reserved my flight ticket with Samuel Turner.

ASSISTANT: Turner, there is no reservation with your name to cancel.

USER: Ok, fine thank you for informing me.

ASSISTANT: My pleasure, have a great day.