You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at present?

USER: I am Jeffrey Clark. Due to sudden rainfall at my source, I want to cancel my recent reservation. Can you please help me for cancellation?

ASSISTANT: Sure, we are here to help you with cancellation. Please wait for a couple of minutes.

USER: Ok, I will wait.

ASSISTANT: Thanks for being patient, there was no reservation found on your name to cancel it.

USER: Ok, Thank you.

ASSISTANT: Thank you for availing us.