You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, please share me your name.

USER: Sure, my name is Christopher Rodriguez.

ASSISTANT: Christopher Rodriguez, there is no reservation on your name.

USER: Ok, Thanks for your assistance.

ASSISTANT: Thank you.