You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Shirley Edwards. I want to change my reservation, due to bad weather at my destination. Can you help me with this?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation on your name.

USER: Ok, Thank you for your service.

ASSISTANT: Thanks for choosing us.