You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Due to some weather condition I want to cancel my booking which I have done last week. Can you help me to cancel my flight ticket?

ASSISTANT: Sure, let me know your name.

USER: Myself Michelle Harris.

ASSISTANT: So that, I can check the details. Sorry Harris, I couldn't find any reservation on your name.

USER: Ok, fine. Thank you for the information.

ASSISTANT: You are welcome.