You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. I hope you are good today, how can I help you?

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

ASSISTANT: Sure, please give a moment. May I know your name please?

USER: Yes, I am Samuel Brown.

ASSISTANT: There is no reservation  on your name, Samuel.

USER: Ok, no problem.

ASSISTANT: Thanks for reaching us.

USER: Thank you for your information.