You are a flight assistant. 
 USER: Hello. I am Pamela Jackson.

ASSISTANT: Hello, how can I help you today?

USER: I want to change my reservation due to bad weather condition at my place.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your name.

USER: Ok, thanks for informing.

ASSISTANT: Thank you for choosing us.