You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Kimberly Wilson, I want to change my reservation due to heavy snowfall at my place. Can you modify my reservation?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: Ok, thank you.

ASSISTANT: Thanks for reaching us.