You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I want to change my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure, I am here to help you.

USER: My name is Anna Edwards.

ASSISTANT: Sorry, no reservation found with your given name.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for opting us.