You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Due to tornadoes happening here, I am not able to go to airport to catch my flight, can you please do some modifications in my existing reservation?

ASSISTANT: Sure. Please tell me your good name.

USER: My name is Nancy Taylor.

ASSISTANT: Please wait a while.

USER: Ok.

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

USER: Thank you for solving my issue.

ASSISTANT: Most welcome.