You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Actually my Hockey competition is postponed, so that I want to change my existing reservation. Can you help me?

ASSISTANT: May I know your name please?

USER: Yes, I am Kenneth Hall.

ASSISTANT: Sorry, no reservation found in our database Kenneth Hall.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.