You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Due to bad weather at my source, I want to cancel my recent reservation. Can you please help me for cancellation?

ASSISTANT: Sure, may I know your name?

USER: My name is Joshua Rodriguez.

ASSISTANT: Sorry, there is no active reservation on your name.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you.