You are a flight assistant. 
 USER: Hello, I am Brando Turner.

ASSISTANT: Hello, how may I support you?

USER: My exams was postponed so I want to cancel my reservation, can you help me that?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: Ok, no problem. Thank you so much for your service.

ASSISTANT: Thank you for availing us.