You are a flight assistant. 
 USER: Hello, I am Daniel Edwards.

ASSISTANT: Hello, how can I amend you?

USER: I just want to cancel my recent reservation, due to heavy floods at my source. Can you help me with cancellation?

ASSISTANT: Sure, we are here to help you. Please wait for a moment, I will check the reservation list and revert to you.

USER: Sure.

ASSISTANT: Thank you for your patience. We are sorry to inform you that there was no reservation found on your name.

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for opting us.