You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be of your assistance?

USER: My plan to to go Las Vegas has postponed as of now due to heavy rain, please help me in changing my reservation.

ASSISTANT: Ok. Let me check the current status and revert you.

USER: Ok.

ASSISTANT: Thanks for your time. There is no reservation found on your name.

USER: Ok, not an issue. By the way, my name is Samuel Mitchell.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.