You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to change my existing reservation due to bad weather conditions. Can you help me in that?

ASSISTANT: Sure, I am mirthful to help you with that.  Can you please share me your name?

USER: Pamela White.

ASSISTANT: Please hold on for a while.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.