You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: I am Jennifer Nelson. I want to change my reservation due to change in weather conditions at my place.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: Thank you for your valuable time. No reservation found on your name.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for choosing us, have a nice day.