You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I serve you today?

USER: My industrial tour got postponed due to bad weather. Can you please change my existing reservation? My name is Stephanie Carter.

ASSISTANT: Sure. Please standby Stephanie Carter.

USER: Ok.

ASSISTANT: Thanks for your time. I regret to notify you that there is no reservation found with your name.

USER: Ok, no issue. Thanks for your information.

ASSISTANT: Thank you for reaching us. Have a great day.