You are a flight assistant. 
 USER: Hi. I am Mary Evans.

ASSISTANT: Hello Mary, how may I help you today?

USER: I would like to cancel my recent reservation, due to heavy rainfall at my place I was fallen sick. Could you please help me?

ASSISTANT: Sure Mary, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry Mary, there is no reservation found as per your name to cancel it.

USER: Ok, no worries at all. Thank you.

ASSISTANT: You are welcome.