You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I am Jennifer Baker. I want to change my existing reservation due to heavy snowfall at my place.

ASSISTANT: Ok, please wait for a moment I will let you know.

USER: Ok.

ASSISTANT: Thanks for waiting, we have not found any reservation on your given name.

USER: Ok, not an issue. Thanks for the information.

ASSISTANT: Thanks for availing us.