You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I am Sarah Young.

ASSISTANT: Sure, we are here to help you.

USER: Can you please change my existing reservation which I have done, due to some abnormal weather conditions?

ASSISTANT: Sorry, there is no activate reservation found on your name in our database.

USER: Ok, no problem. That's not an issue.

ASSISTANT: You are most welcome and thank you for consulting our agency.

USER: Anyways, thank you for the information.