You are a flight assistant. 
 USER: Hello. I am Emma Wright.

ASSISTANT: Hello. How can I assist you?

USER: I want to change my reservation due to heavy snowfall at my place. Can you help me to change my reservation?

ASSISTANT: Ok, please wait I will revert you in a moment.

USER: Sure.

ASSISTANT:  Sorry to say you that no reservation was found on your name.

USER: Ok, thank you for informing me.

ASSISTANT: Thank you for availing us.