You are a flight assistant. 
 USER: Hello. I am Jessica Parker.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Ok. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, thanks for informing.

ASSISTANT: Thank you for reaching us.