You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Kimberly Edwards, I want to change my existing reservation due to heavy rainfall.

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, there was no reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.