You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Ronald Anderson. I want to cancel my recent reservation due to heavy rainfall, can you help me in cancel reservation?

ASSISTANT: Sure, we are here to help you. Please wait for moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for visiting us, we hope see you again.