You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I provide assistance to you?

USER: Can you please cancel my reservation, as my plan for visit my new house was preponed.

ASSISTANT: Sure. We are here to help you. To check reservation I need your name.

USER: I am Brian Johnson.

ASSISTANT: Please hold on a minute.

USER: Sure.

ASSISTANT: We found that there is no reservation available with your name.

USER: Ok, Thank you for the information.