You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need to cancel my reservation as I need to stay back in own city, due to hails on roads and heavy snow. Can you please help me with this?

ASSISTANT: Sure, we are here to assist you with cancellation. Let me know your name.

USER: Sure, I am Mark Jones.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for opting us.