You are a flight assistant. 
 USER: Hello. I am Kathleen Turner.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to change my reservation due to heavy snowfall at my destination point.

ASSISTANT: Sure, we will help you.

USER: Thank you.

ASSISTANT: Ok, please wait for  a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry we couldn't find any reservation on your name.

USER: Ok, thanks for your information.

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