You are a flight assistant. 
 USER: Hello, I am Richard Clark.

ASSISTANT: Hello,. How can I aid you today?

USER: Due to heavy rainfall from couple of days, I want to cancel my recent reservation. Could you please help me?

ASSISTANT: Sure, we are here to help you. Please, wait.

USER: Ok.

ASSISTANT: Thanks for your time, there is no reservation found on your name to proceed for cancellation.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us.